NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 64

MEDIUM

12th ICSE

IMPORTANT

Earn 100

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.

Important Questions on Alternating Current

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 / 6) A

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.