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# AC and DC Generator Multiple Choice Questions PDF p. 17

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## AC & DC Generator Questions and Answers

1.

Device that converts electrical energy into mechanical energy is

AC generator
DC generator
cell
DC motor

2.

An inertial frame of reference is the frame

in which first law of motion is valid
in which law of inertia is valid
which is not moving with uniform velocity
both a and b

3.

The formula of angular momentum of the moving body is

L = r/p
L = r × p
L = r - p
L = r + p

4.

A vector whose magnitude is zero is called a

scalar
resultant
unit vector
null vector

5.

The magnitude of the displacement from initial position to final position is the

straight line
curved line
circle
total distance