10th Class Physics MCQS Chapter 7

For the emission of electrons from the tungsten filament the values of current and voltage are taken as:

0.4A and 8V

0.3A and 6V

0.2 A and 4V

0.1 A and 2V

Static electricity can be generated by:

Motion

Friction

Lubrication

Smaller the objects

The output of a two input NOR gate is 1 when:

A is 1 and B is 0

Both A and B are 0

A is 0 and B IS 1

Both A and B are 1

The unit of electrical energy is:

Volt

Watt

Joule

Electron volt(eV)

Earth wire is connected to the:

Transformer

Power house

Generator

Ground

The amount of current that can be felt is:

0.001 A

1A

2A

0.1A

The base of computer operation are:

0, 1

1, 10

1,2

0, 2

SI unit of electric intensity is:

Nm

Watt

NC^-1

NS ¹

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

Half

4 times

Double

¼ th

The device which converts digital quantities into analog quantities is called:

ADC

ACD

CAD

DAC