The device which converts mechanical energy into electrical energy is MCQ with Answer and Explanation

Question

Share Report Error

The device which converts mechanical energy into electrical energy is

A. Rectifier

B. Transformer

C. Generator

D. Motor

Answer: Option C

Solution (By JKSSB Mock Tests)

Generator uses electromagnetic induction to produce electricity from mechanical motion.

This question belongs to: Science Physics

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Physics Questions

Question #1

The decimal equivalent of binary number 1101 is

A. 13

B. 11

C. 9

D. 15

View Answer & Solution Discuss

Get Complete Subject PDF for Science

Correct Answer: Option A

Explanation:
1×8 + 1×4 + 0×2 + 1×1 = 13.

This question belongs to: Science Physics

Question #2

Simple pendulum period T = 2π√(l/g). If length quadrupled, T becomes:

A. Double

B. Same

C. Half

D. Four times

View Answer & Solution Discuss

Get Complete Subject PDF for Science

Correct Answer: Option A

Explanation:
T ∝ √l. If l' = 4l, T' = √4 × T = 2T. Period doubles when length quadruples. Memory aid: 'Pendulum: T ∝ √l; 4× length ⇒ 2× period'. Proportional reasoning frequently tested in competitive oscillations sections.

This question belongs to: Science Physics

Question #3

In a semiconductor, the temperature coefficient of resistance is

A. Negative

B. Infinite

C. Positive

D. Zero

View Answer & Solution Discuss

Get Complete Subject PDF for Science

Correct Answer: Option A

Explanation:
Semiconductors have negative temperature coefficient: resistance decreases with temperature.

This question belongs to: Science Physics

Explore All Physics MCQs