1000+ JEE Physics Chapter Wise Question Papers with Solutions Pdf - 1
Question: 1
The average power of an ac circuit is also called ____ of the circuit.
(A) resonant power
(B) rms power
(C) instantaneous power
(D) true power
Ans: D
true power
Question: 2
At resonance, the applied voltage is the potential drop across
(A) resistor
(B) inductor
(C) capacitor
(D) both a and b
Ans: A
resistor
Question: 3
The coefficient of mutual induction of two coils is numerically equal to _____ linked with one coil when unit current flows through the neighbouring coil.
(A) area
(B) self inductance
(C) power
(D) magnetic flux
Ans: D
magnetic flux
Question: 4
Copper loss can be minimised by using
(A) shell type of core
(B) thick wires with low resistance
(C) cores made of stelloy
(D) cores made of mumetal
Ans: B
thick wires with low resistance
Question: 5
Power loss can be minimised by transmitting power at
(A) low voltage
(B) high power
(C) high current
(D) high voltage
Ans: D
high voltage
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