TNPSC General Science Previous Question Papers - 2

Question: 6

The armature of AC generator is wound on

(A) copper frame

(B) soft iron core

(C) wood

(D) bakelite

Question: 7

The self inductance of a straight conductor is

(A) zero

(B) infinity

(C) very large

(D) very small

Question: 8

Power from all power stations are fed to the

(A) collecting station

(B) pycons

(C) transformer

(D) grid

Question: 9

The property of a coil which enables to produce an opposing induced emf in it when the current in

(A) static induction

(B) self induction

(C) mutually induction

(D) none of the above

Question: 10

Electromagnetic induction is used in

(A) choke coil

(B) ac generator

(C) room heater

(D) transformer