AC and DC Generator Quiz Questions and Answers PDF - 17

MCQ 81: Device that converts electrical energy into mechanical energy is

1. AC generator
2. DC generator
3. cell
4. DC motor

MCQ 82: An inertial frame of reference is the frame

1. in which first law of motion is valid
2. in which law of inertia is valid
3. which is not moving with uniform velocity
4. both a and b

MCQ 83: The formula of angular momentum of the moving body is

1. L = r/p
2. L = r × p
3. L = r - p
4. L = r + p

MCQ 84: A vector whose magnitude is zero is called a

1. scalar
2. resultant
3. unit vector
4. null vector

MCQ 85: The magnitude of the displacement from initial position to final position is the

1. straight line
2. curved line
3. circle
4. total distance