RC Circuit

Everything about RC circuit/network

1. A first order RC circuit consists of only one resistor and one capacitor.
2.RC circuits can be used to filter a signal by blocking certain frequencies and passing others.
3.Most common RC filters are low pass filter and high pass filter.
4.Cut off frequency formula for RC network fc=1/2*pi*R*C
5. Formula to find total impedance in RC series circuit
                Z= √(R^2+Xc^2)
6.Formula to find total impedance in RC parallel circuit
               Z=R+jXc
7. RMS source voltage in RC circuit is
        Vrms^2=Vc^2+Vr^2
8.Phase angle= tan^-1 (Xc/R)
9.Apparent power = √(real power^2+reactive power^2)

Questions and Answers on Electrical Engineering

1. Does conductivity in a conductor change with change in temperature?
Ans. Yes. Resistivity in a conductor is directly proportional to temperature. If temperature decreases resistance will also decrease
2. What are the properties of soft iron?
Ans. i. it is a magnetic material
         ii.it has low coercivity and so does not remain magnetised when the field is removed
         iii. it cannot be used for permanent magnets.
3. What is the condition for distortionless transmission line?
Ans. RC=LG
          Resistance*Capacitance=inductance*conductance
4. What is VSWR?
Ans. Voltage standing wave ratio (VSWR) is the ratio between maximum voltage to minimum voltage.
         VSWR=Vmax/Vmin
5. What is the formula for flux density?
Ans. flux density=flux/area coulombs/m^2
6. What is the formula for electric field intensity?
Ans. H=Force in newtons/charge in coulombs.
7. What is coulombs law?
Ans.i. like charges repel each other whereas unlike charges attract each other.
       ii. force experienced is directly proportional to the product of the charges  and inversely proportional to square of the distance between them.
        F=K*Q1*Q2/D^2
 Where K=1/4pi*e0*er
8. What is the formula for voltage divider?
Ans. Vout=Vin(Rx/(Rx+R1+R2+....)
        Where vout is the voltage across the resistor whose voltage drop has to be found
                    Vin is the input voltage
                    Rx is the resistor whose resistance has to be found
                    R1,R2,R3.... are the total resistors in the circuit.
9.what is the formula to find the equation of a circle?
Ans. (x-h)^2+(y-k)^c=r^2
 where h and k are the centre of the circle and r is the radius of the circle
10.What is Barkhausen's criterion ?
Ans.In electronics the Barkhausen stability criterion is a mathematical condition to determine when a linear electronic circuit  will oscillate.
     

1. The loop gain is equal to unity in absolute magnitude, that is, ${\displaystyle |\beta A|=1\,}$ and
2. The phase shift  around the loop is zero or an integer multiple of 2π: ${\displaystyle \angle \beta A=2\pi n,n\in 0,1,2,\dots \,.}$

11.What is the formula to find joule?

Ans. Joule=watt*seconds

Satellites Launched By India

Satellites Launched By India

1. aryabhatta      19 April 197
2. Bhaskara-I      7 June 1979 
3. Rohini Technology Payload 10 August 1979      
4. Rohini RS-1   18 July 1980 
5. Rohini RS-D1 31 May 1981            
6. Ariane Passenger Payload Experiment       19 June 1981            
7. Bhaskara -II    20 November 1981
8. INSAT-1A       10 April 1982           
9. Rohini RS-D2 17 April 1983           
10. INSAT-1B       30 August 1983       
11. Stretched Rohini Satellite Series (SROSS-1)          24 March 1987         
12. IRS-1A            17 March 1988         
13. Stretched Rohini Satellite Series (SROSS-2)          13 July 1988 
14. INSAT-1C       21 July 1988 
15. INSAT-1D       12 June 1990
16. IRS-1B            29  August 1991     
17. INSAT-2DT     26 February 1992    
18. Stretched Rohini Satellite Series (SROSS-C)         20 May 1992
19. INSAT-2A       10 July 1992  Ariane-44L H10        
20. IRS-1E 20 September 1993 PSLV-D1        
21. Stretched Rohini Satellite Series (SROSS-C2)       4 May 1994  
22. IRS-P2            15 October 1994      
23. INSAT-2C       7 December 1995    
24. IRS-1C            29 December 1995  
25. IRS-P3            21 March 1996         
26. INSAT-2D       4 June 1997  
27. IRS-1D            29 September 1997 
28. INSAT-2E        3 April 1999  
29. Oceansat-1 (IRS-P4) 26 May 1999
30. INSAT-3B       22 March 2000         
31. GSAT-1           18 April 2001            
32. Technology Experiment Satellite (TES)       22 October 2001      
33. INSAT-3C       24 January 2002      
34. Kalpana-1 (METSAT) 12 September 2002
35. INSAT-3A       10 April 2003           
36. GSAT-2           8 May 2003  
37. INSAT-3E        28 September 2003 
38. RESOURCESAT-1 (IRS-P6)   17 October 2003      
39. EDUSAT          20 October 2004       ]
40. HAMSAT         5 May 2005
41. CARTOSAT-1 5 May 2005  
42. INSAT-4A       22 December 2005  
43. INSAT-4C       10 July 2006 
44. CARTOSAT-2 10 January 2007      
45. Space Capsule Recovery Experiment (SRE-1)        10 January 2007      
46. INSAT-4B       12 March 2007         
47. INSAT-4CR     2 September 2007   
48. CARTOSAT-2A           28 April 2008           
49. IMS-1 (Third World Satellite – TWsat)        28 April 2008           
50. Chandrayaan-1         22 October 2008      
51. RISAT-2          20 April 2009            PSLV-C12      
52. ANUSAT         20 April 2009            PSLV-C12      
53. Oceansat-2 (IRS-P4) 23 September 2009 
54. GSAT-4           15 April 2010           
55. CARTOSAT-2B           12 July 2010 
56. StudSat           12 July 2010 
57. GSAT-5P / INSAT-4D            25 December 2010  
58. RESOURCESAT-2      20 April 2011           
59. Youthsat         20 April 2011           
60. GSAT-8 / INSAT-4G  21 May 2011
61. GSAT-12         15 July 2011 
62. Megha-Tropiques     12 October 2011      
63. Jugnu  12 October 2011      
64. RISAT-1          26 April 2012           
65. SRMSAT         26 April 2012           
66. GSAT-10[3]    29 September 2012 
67. SARAL[4]        25 February 2013    
68. IRNSS-1A[5]  1 July 2013   
69. INSAT-3D[6]  26 July 2013 
70. GSAT-7[7]      30 August 2013       
71. Mars Orbiter Mission (MOM)          5 November 2013   
72. GSAT-14         5 January 2014        
73. IRNSS-1B[8]  4 April 2014  
74. IRNSS-1C[9]  16 October 2014      
75. GSAT-16         7 December 2014    
76. IRNSS-1D       28 March 2015         
77. GSAT-6           27 August 2015       
78. Astrosat          28 September 2015 
79. GSAT-15         11 November 2015 
80. IRNSS-1E       20 January 2016      
81. IRNSS-1F       10 March 2016         
82. IRNSS-1G       28 April 2016           
83. Cartosat-2C   22 June 2016
84. INSAT-3DR    8 September 2016   
85. SCATSAT-1    26 September 2016 
86. GSAT-18         5 October 2016

Major organizations and their headquarters

Major organizations and their headquarters

1. UNESCO : Paris,france
2. UNO: New York
3. UNICEF:New York
4. SAARC: Kathmandu Nepal
5. NATO: Brussels Belgium
6. WHO: Geneva Switzerlnd
7. IMF : Washington DC 
8. IDA(International development association):Washington DC
9. ECA(Economic commission for africa): Addis Ababa
10. IAEA(International Atomic Energy Agency):  Vienna, Capital of Austria

Indian States And Their Capitals

Indian States And Their Capitals

Country Capital
India New Delhi


States and Capitals of India

S.no State                   Capital
1 Andhra Pradesh   Amaravati (proposed)
2 Arunachal Pradesh   Itanagar
3 Assam                   Dispur
4 Bihar                   Patna
5 Chhattisgarh           Raipur
6 Goa                           Panaji
7 Gujarat                   Gandhinagar
8 Haryana                   Chandigarh
9 Himachal Pradesh   Shimla
10 Jammu and KashmirSrinagar
11 Jharkhand           Ranchi
12 Karnataka           Bengaluru
13 Kerala                   Thiruvananthapuram
14 Madhya Pradesh   Bhopal
15 Maharashtra           Mumbai
16 Manipur                   Imphal
17 Meghalaya           Shillong
18 Mizoram                   Aizawl
19 Nagaland                   Kohima
20 Odisha                   Bhubaneswar
21 Punjab                   Chandigarh
22 Rajasthan                   Jaipur
23 Sikkim                   Gangtok
24 Tamil Nadu           Chennai
25 Telangana           Hyderabad
26 Tripura                   Agartala
27 Uttar Pradesh           Lucknow
28 Uttarakhand           Dehradun
29 West Bengal           Kolkata
S.no Union Territories                         Capital
1 Andaman and Nicobar Islands Port Blair
2 Chandigarh                                 Chandigarh
3 Dadar and Nagar Haveli                 Silvassa
4 Daman and Diu                         Daman
5 Delhi                                         Delhi
6 Lakshadweep                                 Kavaratti
7 Puducherry                                 Pondicherry

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 Words That End With Logy

Words That End With Logy

Words That End With Logy And Their Definitions:

1. aerobiology:  the study of airborne microorganisms, pollen, spores, and seeds, especially as agents of                          infection
2. aerology: the study of the atmosphere.
3. aetiology: Etiology is the study of causation, or origination
4. agrology: Agrology is the branch of soil science dealing with the production of crops.
5. algology:the study of algae
6. amphibology: a phrase or sentence that is grammatically ambiguous, such as She sees more of                          her children than her husband
7. analogy:a comparison between one thing and another, typically for the purpose of explanation                 or clarification
8. anesthesiology: An anesthesiologist or anaesthetist is a physician trained in anesthesia and                                   perioperative medicine, the process is called anesthesiology 
9. anthology:a published collection of poems or other pieces of writing
10. anthropology:Anthropology is the study of various aspects of humans within past and present                          societies
11. antilogy:a contradiction in terms or ideas.
12. antitechnology:opposed to technology 
13. apiology: study of bees especially honeybees
14. apology:a regretful acknowledgement of an offence or failure
15. archaeology:Archaeology, or archeology, is the study of human activity through the recovery and analysis of material culture
16. archeology:Archaeology, or archeology, is the study of human activity through the recovery and analysis of material culture
17. areology:the study of the planet Mars.
18. astrobiology:Astrobiology is the study of the origin, evolution, distribution, and future of life in the universe
19. astrology:Astrology is the study of the movements and relative positions of celestial objects as a means for divining information about human affairs and terrestrial events
20. audiology:the branch of science and medicine concerned with the sense of hearing
21. autecology the ecological study of a particular species
22. axiology Axiology is the philosophical study of value
23. bacteriology Bacteriology is the study of bacteria
24. balneology the study of medicinal springs and the therapeutic effects of bathing in them.
25. bibliology 
    • Bibliography, as a discipline, is traditionally the academic study of books as physical, cultural objects; in this sense, it is also known as bibliology.
26. biology Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, evolution, distribution, identification and taxonomy
27. biometeorology Biometeorology is the interdisciplinary field of science that studies the interactions between the biosphere and the Earth's atmosphere on time scales of the order of seasons or shorter.
28. biotechnology Biotechnology is the use of living systems and organisms to develop or make products
29. bryology Bryology is the branch of botany concerned with the scientific study of bryophytes
30. campanology It is the study of bells
31. cardiology
32. cetology
33. chronobiology
34. chronology
35. climatology
36. codicology
37. cohomology
38. conchology
39. cosmetology
40. cosmology
41. craniology
42. criminology
43. cryobiology
44. cryptology
45. cryptozoology
46. cytology
47. cytotechnology
48. dactylology
49. demonology
50. dendrochronology
51. dendrology
52. deontology
53. dermatology
54. dialectology
55. doxology
56. ecclesiology
57. ecology
58. ecophysiology
59. electrology
60. electrophysiology
61. embryology
62. endocrinology
63. enology
64. entomology
65. enzymology
66. epidemiology
67. epiphytology
68. epistemology
69. epizootiology
70. escapology
71. eschatology
72. ethnology
73. ethnomethodology
74. ethnomusicology
75. ethology
76. etiology
77. etymology
78. eulogy
79. exobiology
80. fetology
81. futurology
82. gastroenterology
83. gemmology
84. gemology
85. genealogy
86. geochronology
87. geohydrology
88. geology
89. geomorphology
90. gerontology
91. glaciology
92. glottochronology
93. graphology
94. gynaecology
95. gynecology
96. hagiology
97. haplology
98. helminthology
99. hematology
100. herpetology
101. histology
102. histopathology
103. histophysiology
104. homology
105. horology
106. hydrobiology
107. hydrology
108. hydrometeorology
109. hymnology
110. ichthyology
111. iconology
112. idealogy
113. ideology
114. immunohematology
115. immunology
116. immunopathology
117. iridology
118. karyology
119. kinesiology
120. kremlinology
121. laryngology
122. lepidopterology
123. lexicology
124. lichenology
125. limnology
126. lithology
127. liturgiology
128. logy
129. malacology
130. malariology
131. mammalogy
132. martyrology
133. menology
134. metapsychology
135. meteorology
136. methodology
137. metrology
138. microbiology
139. micrometeorology
140. micromorphology
141. micropaleontology
142. mineralogy
143. misology
144. missiology
145. mixology
146. monology
147. morphology
148. museology
149. musicology
150. mycology
151. myology
152. myrmecology
153. mythology
154. nanotechnology
155. narratology
156. necrology
157. nematology
158. neology
159. neonatology
160. nephrology
161. neurobiology
162. neuroendocrinology
163. neurology
164. neuropathology
165. neuropharmacology
166. neurophysiology
167. neuropsychology
168. neuroradiology
169. nomology
170. nosology
171. numerology
172. oceanology
173. oecology
174. oenology
175. oinology
176. ology
177. oncology
178. onomatology
179. ontology
180. oology
181. ophthalmology
182. organology
183. orismology
184. ornithology
185. orology
186. osteology
187. otolaryngology
188. otology
189. otorhinolaryngology
190. paleoanthropology
191. paleobiology
192. paleoclimatology
193. paleoecology
194. paleontology
195. paleopathology
196. paleozoology
197. palynology
198. papyrology
199. parapsychology
200. parasitology
201. pathobiology
202. pathology
203. pathophysiology
204. pedology
205. penology
206. periodontology
207. petrology
208. pharmacology
209. phenology
210. phenomenology
211. philology
212. phlebology
213. phonology
214. photobiology
215. photogeology
216. phraseology
217. phrenology
218. phycology
219. physiology
220. physiopathology
221. phytopathology
222. phytosociology
223. planetology
224. pneumatology
225. pomology
226. posology
227. praxeology
228. primatology
229. proctology
230. protozoology
231. psephology
232. psychobiology
233. psychology
234. psychopathology
235. psychopharmacology
236. psychophysiology
237. pteridology
238. pyrology
239. radiobiology
240. radioecology
241. radiology
242. reflexology
243. rheology
244. rheumatology
245. roentgenology
246. scatology
247. sedimentology
248. seismology
249. selenology
250. semasiology
251. semeiology
252. semiology
253. serology
254. sexology
255. sinology
256. sitology
257. sociobiology
258. sociology
259. somatology
260. soteriology
261. speleology
262. stereology
263. symbology
264. symptomatology
265. synecology
266. tautology
267. technology
268. teleology
269. teratology
270. terminology
271. tetralogy
272. thanatology
273. theology
274. tocology
275. tokology
276. topology
277. toxicology
278. tribology
279. trichology
280. trilogy
281. typology
282. ufology
283. urbanology
284. urology
285. vexillology
286. victimology
287. virology
288. volcanology
289. vulcanology
290. zoology
291. zymology
292.