Physics Hard pms

Which device is used to step up or step down alternating voltage in power transmission?

Q: Which device is used to step up or step down alternating voltage in power transmission?

Correct Answer: Transformer. A transformer changes the voltage level of alternating current using electromagnetic induction between primary and secondary coils. Transformers enable efficient long-distance power transmission by stepping voltage up for transmission and down for safe household use.

A Generator
B Motor
C Rectifier
D Transformer

Correct Answer: Option D — Transformer

Explanation:

A transformer changes the voltage level of alternating current using electromagnetic induction between primary and secondary coils. Transfor...

0 views Back to Physics

Submitted by: PaperMCQs

Related MCQs

Which type of energy transformation occurs in a solar panel?

Click to view answer →

Which principle states that pressure in a static fluid increases with depth depending on fluid density?

Click to view answer →

What is the term for a device that stores electrical energy in an electric field?

Click to view answer →

Which color of light has the shortest wavelength in the visible spectrum?

Click to view answer →

What is the term for the electrical potential difference between two points in a circuit?

Click to view answer →

Which device converts electrical energy into mechanical energy?

Click to view answer →

Which instrument is used to measure atmospheric pressure?

Click to view answer →

Which law states that the pressure of a gas is inversely proportional to its volume at constant temperature?

Click to view answer →

Which particle carries a positive electric charge in an atom?

Click to view answer →

Which type of wave does not require a medium to travel?

Click to view answer →

Subject	Physics
Difficulty	Hard
Exam Types	pms
Correct	Option D

Which device is used to step up or step down alternating voltage in power transmission?

Related MCQs

MCQ Details

Practice More