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Physics 10th Class English Medium Unit 7 Online Test MCQs With Answers

Question # 1

Which device is used to show the change in the value of current or electrical potential as a graph?

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Cathode ray tube

Electron gun

Oscilloscope

Transformer

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Question # 2

The symbol of AND operation is:

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Question # 3

In electrostatic all charges are in:

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The same direction

Opposite direction

Motion

Static state

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Question # 4

If Current flowing through switch then the output is expressed as:

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-1

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Question # 5

The emission of electron from the surface of hot metal is called:

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Ionization

Conduction

Thermionic emission

Convection

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Question # 6

If X = A,B, then X is 1 when:

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A and B are 1

A or B is 0

A is 0 and B is 1

A is 1 and B is 0

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Question # 7

Value of ‘k’ depends upon:

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System of unit

Nature of medium

Both a and b

None of these

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Question # 8

The logical operation performed by this gate is:

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AND

NOR

NAND

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Question # 9

If the potential energy of none coulomb charge is one joule then its potential will be:

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5 volt

2 volt

3 volt

1 volt

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Question # 10

SI unit of capacitance is:

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Joule

Volt

Watt

Farad

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Question # 11

AND gate can be formed by using two:

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NOT gates

OR gates

NOR gates

Nand gates

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Question # 12

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

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0.1 A and 2V

0.2 A and 4V

0.3A and 6V

0.4A and 8V

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Question # 13

What will be the capacitance of capacitor by joining them in parallel:

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Increased

Much less

Decrease

No change

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