MEDIUM
12th ICSE
IMPORTANT
Earn 100

In an AC circuit, R=40 Ω, Z=50 Ω, Vrms=200 V Calculate the average power consumed over a full cycle.

Important Questions on Alternating Current

MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 63
A resistance of 150 Ω and a capacitance of 15 μF are connected in series with an AC source. The peak value of current is 0.20 A. Calculate the average power consumed in the circuit. If the capacitor is removed but the current in kept the same, what is the average power consumed in the resistor alone?
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 64
In an alternating circuit connected to an emf of 100 V and frequency 50 Hz, a resistance of 10 Ω and an inductance of 1/(10 π) H are connected in series. Find out the power dissipated in the circuit.
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 65
An alternating voltage and the corresponding current are given by V=110 sin (ωt+π/6)Volt and I=5 sin ωt-π/6A respectively. Find the impedance of the circuit and the average power dissipation in it.
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 66
A transformer is used to step up an alternating emf of 200 V to 440 V If the primary coil has 1000 turns, calculate the number of turns in the secondary coil.