100+ Physics Question and Answer for Competitive Exams - 1

Question: 1

What are the two basic types of connection?

The two types of connections are

Series

Parallel connections

Question: 2

What is a microphone?

Microphone is a device which converts sound energy into electrical energy.

Question: 3

What is a transformer?

A transformer is a device by which a low voltage in a circuit can be converted into a high voltage in a neighbouring circuit.

Question: 4

Define one joule?

The potential at a point of the amount of work done in bringing one Coulomb positive charge from infinity to that point is one joule.

Question: 5

Define one ohm?

One Ohm is defined as the resistance of a conductor through which one ampere current flows when a potential difference of one volt is maintained between its two ends.