1000+ JEE Physics Chapter Wise Question Papers with Solutions Pdf - 2

Question: 6

Cores of chokes used in low frequency A.C. circuit are made of

(A) aluminium

(B) iron

(C) mumetal

(D) stelloy

Question: 7

For long distance power transmission, power lines are made of conducting material like

(A) aluminium

(B) steel

(C) iron

(D) copper

Question: 8

The mutual induction is very large, if the two coils are wound on

(A) copper frame

(B) soft iron core

(C) bakelite

(D) wood

Question: 9

At resonant frequency of RLC series circuit impedance of the circuit

(A) and current becomes minimum

(B) and current becomes maximum

(C) is minimum and current becomes maximum

(D) is maximum and current becomes minimum

Question: 10

Chokes used in wireless receiver circuits are called

(A) audio frequency chokes

(B) radio frequency chokes

(C) high frequency chokes

(D) both b and c