Monday, March 17, 2014

ISRO EC 2006 SET B











Sol: Option c)







Taking the characteristic equation




















Another Method:













Sol: option C)


















Sol: Option a)





















Sol: Option b)
At resonance








Sol: Option d)
In a series RLC circuit:
Below resonance frequency, circuit has capacitive impedance
At resonance, circuit impedance is totally resistive
Above resonance, circuit has inductive impedance






Sol: Option d)















Sol: Option a)
In Sigma delta ADC, high bit accuracy is achieved by Over Sampling and noise shaping.












Sol: Option a)


















Sol: Option b) or d)





















Sol: option a)















Sol: Option a)















Sol: Option a)















Sol: Option a)




Sol: Option c)















Sol: Option a)

















Sol: Option c)












Sol: Option c)


















Sol: Option d) with small correction in last but first term. It should be (Xn-2)(Xn-1) '+' sign should be  removed in between .











Sol: Option a)













Sol: Option b)












Sol: Option a)









Sol: Option b)












Sol: Option d)














Sol: Option c)











Sol: Option b)












Sol: Option b)








Sol: Option d)







Sol: Option c)
















Sol: Option c)















Sol: Option d)


Sol: Option a)










Sol: Option b)






Sol: Option c)
No possible grouping. 

















Sol: None of the options. It is actually gray to binary converter.










Sol: Option a)










Sol: Option a)









Sol: Option d)










Sol: Option b)








Sol: Option d)












 Sol: Option d)










Sol: Option d)










Sol: Option a)



Sol: Option d)







Sol: Option c)






Sol: Option b)








Sol: Option b)









 Sol: Option d)











Sol: Option b)











Sol: Option a)









Sol: Option a)







Sol: Option c)












Sol: Option c)













Sol: Option c)












Sol: Option c)












Sol: Option d)












Sol: Option c)









Sol: Option b)









Sol: option b)













Sol: Option d)










Sol: Option a)











Sol: Option b)






Sol: Option c)








Sol: Option d)






Sol: Option c)
Hysteresis loss and Eddy current loss depends on frequency.











Sol: Option c)






Sol: Option a)










Sol: Option d)
A Capacitor blocks dc voltage. Therefore its zero steady state current.











Sol: Option b)















Sol: Option d)















Sol: Option a)





Sol: option d)







Sol: Option d)

3 comments:

  1. Answer:16(ISRO EC 2006 SET B) will be 'C'. [ 0.6V drop in forward biased diode and 6.3V drop in reversed biased diode.]

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    Replies
    1. You are absolutely right. Thanks Ankit for correcting the mistake. I wrongly calculated 6.3 volts across FB zener diode also.

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