Question # 1

Electric motor converts electrical energy into:

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Chemical energy

Solar energy

Heat energy

Mechanical energy

If current is flowing from bottom end to the top end in a wire, according to right hand rule the direction of line of forces would be:

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Anti-clock wise

Clock wise

Left and Right

Along the conductor.

A transformer has Np =100 and Ns =500 , if 6 volt D.C is applied across its primary, the induced voltage.

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0 V

30 V

45 V

60 V

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

In electric motor, the brushes are made of:

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Lead

Graphite

Iron

Wood

A positive electric charge:

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Attracts other positive charge

Repels other positive charge

Attract a neutral charge

Repels a neutral charge

The magnetic field of a solenoid resembles as:

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Iron wire

U-shape magnet

Bar magnet

Point charge.

Optical fibres works on the principle of:

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Reflection

Refraction

Total internal reflection

Diffraction

The minimum value of angle of deviation is called:

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Minimum angle

Incident angle

Angle of minimum deviation

None of these

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Physics 10th Class English Medium Unit 6 Online Test MCQs With Answers

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