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10 questions · self-marked practice — reveal the answer and mark yourself.

Question 31 Mark
Root mean square value of emf in any AC source is 200 V. The peak value of voltage is ___________ V.
Answer
$200 \sqrt{2} V$
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Question 41 Mark
If $R=8 \Omega$ and $L=6 \Omega$ are in series, then impedance of the circuit is ___________.
Answer
$10 \Omega$
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Question 51 Mark
Reading of an ammeter in ac circuit is 10 A. The peak value of current in the circuit is ________ A.
Answer
$10 \sqrt{2}$
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Question 71 Mark
In pure inductor ac circuit, alternating current is $\frac{\pi}{2}$ __________ of alternating voltage.
Answer
lags
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Question 81 Mark
In pure resistor ac circuit, alternating voltage and alternating current are in ____________.
Answer
same phase
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