Question # 1

What does a switch do:

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Oppose the current

Open and close the circuit

Store energy

Provide voltage

Capacitors that are used in resonant circuits that tune radios to particular frequencies, such circuits are called:

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Series circuits

Filter circuits

Parallel circuits

AC circuits

Each volt of lightening contains energy:

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4x10⁶ joules

1000 joules

1000 million joules

10 joules

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

If A input is 1 and B is zero, then in AND operation output will be:

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0

0.1

1

None of these

The value of K in SI unit is:

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9X10²⁰ Nm²C²

8X10⁹Nm²C²

9X10⁹Nm²C²

10X10^-9 Nm²C^-2

Electroscope is used for detecting:

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Current

Charge

Voltage

Resistance

In electrostatic all charges are in:

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The same direction

Opposite direction

Motion

Static state

The closed switch in Boolean expression is represented by:

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0

1

10

2

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

The converter of analogue to digital signal is:

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ADC

DAC

ATDC

None of these

The digits used in electronics are:

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1

0

0 and 1

1 and 2

Static electricity can be generated by:

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Lubrication

Friction

Motion

Smaller the objects

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

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