161. |
A current of frequency is passing through an A.C. circuit having series combination of R = 100 and L = 2 H, the phase difference between voltage and current is _____ .
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Answer:
Option (d) |
162. |
In A.C. circuit having only capacitor, the current _____ .
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Answer:
Option (c) |
163. |
An alternating voltage given as sin 100t volt is applied to a capacitor of 1 . The current reading of the ammeter will be equal to _____ mA.
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Answer:
Option (a) |
164. |
For a step-down transformer which of the following is correct ?
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Answer:
Option (b) |
165. |
For L-C-R A.C. circuit resonance frequency is 5000 Hz and frequencies at half power points are 4950 Hz an 5050 Hz. The Q- factor is _____.
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Answer:
Option (b) |
166. |
For an A.C. L-C-R series circuit at resonant frequency, which of the following is wrong ?
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Answer:
Option (c) |
167. |
If angular frequency of an A.C. source used in L-C-R circuit is decreased, then inductive reactance _____ and capacitive reactance _____ .
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Answer:
Option (c) |
168. |
Current of Hz frequency is passing through an A.c. circuit having series combination of resistance R = 100 and inductor . The phase difference between the voltage and current is _____ .
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Answer:
Option (b) |