Question # 1

electric intensity is a quantity:

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scalar

vector

base

none of these

Two switches attached in series work on which operation?

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AND operation

OR operation

NOT operation

NOR operation

Electric field lines were introduced by:

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Faraday

Newton

Coulomb

Joule

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

Value of ‘k’ depends upon:

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System of unit

Nature of medium

Both a and b

None of these

1 Pico farad is equal to:

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10^-9F

10¹²F

10^-12F

10^-6F

Which instrument is used to measure current, resistance and potential difference:

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Galvanometer

Digital meter

Voltmeter

Ammeter

In 1950, physicists observed that in cathode ray tube a special type of rays produced from cathode, these rays were called:

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Cathode rays

X-rays

Alpha rays

Gamma rays

The unit of electrical energy is:

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Joule

Watt

Volt

Electron volt(eV)

Electroscope is used for detecting:

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Current

Charge

Voltage

Resistance

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

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Ionization

Conduction

Thermionic emission

Convection

SI unit of electric intensity is:

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Watt

NC^-1

NS^-1

Nm

The open switch Boolean expression is represented by:

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0

1

10

2

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

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