TNPSC VAO Previous Year Question Papers with Answers - 1

Question: 1

Transformer works on

(A) AC more effectively than DC

(B) AC only

(C) DC only

(D) Both AC and DC

Question: 2

Who discovered the production of induced emf by the effect of magnetic field?

(A) Fleming

(B) Michael Faraday

(C) Christian Oersted

(D) Christian Huygens

Question: 3

Which of the following components is not used in AC generator?

(A) Armature

(B) Brushes

(C) Slip rings

(D) Split rings

Question: 4

Fleming's right hand rule is otherwise called

(A) Electromagnetic law

(B) Generator rule

(C) Lenz's law

(D) Transformer rule

Question: 5

The device used for controlling current in an AC circuit is

(A) Choke coil

(B) Transformer

(C) Starter

(D) Slip ring