10th Class Physics MCQS Chapter 4

Field around a charge in which that charge exerts a force on a point charge brought in that field is called:

Point charge

Neutral zone

Magnetic field

Electric field

If a charged body is brought near a negatively charged electroscope and the leaves of electroscope diverge, then the body is:

None of these

Negatively charged

Positively charged

Neutral

SI unit of capacitance is:

Volt

Farad

Watt

Joule

If we double the distance between two charges, then force becomes

Half

1/4th

4 times

Double

The sound level of rustling of leave is:

20 dB

1 dB

30 dB

10 dB

If we double the distance between two charges, what will be the change in the force between them?

Double

One fourth

Four times

Half

Electric intensity is a quantity.

None of these

Scalar

Base

Vector

How many tubes or electron guns used in a colour television set

Three

Two

Four

Five

NOT gate is also called:

Transmitter

Converter

Inverter

Receiver

Volt is named after the Italian physicist:

Faraday

Alessandro volta

Newton

Coulomb