Question # 1

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

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ADC

DAC

ACD

CAD

The digits used in electronics are:

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1

0

0 and 1

1 and 2

In variable capacitor, dielectric medium is:

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Paper

Air

Mica

Ceramic

The output of a NAND gate is 0 when

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Both of its inputs are 0

Both of its inputs are 1

any of its inputs is 0

any of its inputs is 1

AND gate can be formed by using two:

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NOT gates

OR gates

NOR gates

Nand gates

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

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A is 1 and B is 0

A is 0 and B IS 1

Both A and B are 0

Both A and B are 1

The amount of current that causes the loss of muscle control is:

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0.1A

0.015A

2A

1A

The logical operation performed by this gate is:

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AND

NOR

NAND

OR

Electric field lines were introduced by:

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Faraday

Newton

Coulomb

Joule

Digital technology is used in:

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Bulb

Radar

Electric motor

All of these

What does a switch do:

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Oppose the current

Open and close the circuit

Store energy

Provide voltage

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

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Galvanometer

Digital meter

Voltmeter

Ammeter

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

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0

1

-1

2

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