MEDIUM
12th ICSE
IMPORTANT
Earn 100

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.

Important Questions on Alternating Current

MEDIUM
12th ICSE
IMPORTANT
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.