Question # 1

The shape of magnetic lines of force in case of a straight current carrying conductor is:

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Eliptical

Trangular

Rectangular

Circular

The coil of a transformer which is connected to A.C is called:

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Primary coil

Secondary coil

Field coil

Armature coil

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

The standard group of bits in digital electronic is:

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5 bits

6 bits

7 bits

8 bits

Number of poles in a magnet is:

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One

Two

Three

Unlimited

If the change of current in a circuit induces a current in another circuit, this phenomena is known as:

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Self induction

Mutual induction

Electromagnetic induction

None mutual induction

The instrument which is used to display the magnitude of changing electric current is called:

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Evacuated tube

Cathode rays oscilloscope

Television tube

Picture tube

When a current carrying conductor is placed in magnetic field at right angle to it. The direction of force acting upon it is:

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The same as direction of field

Opposite the direction of field

Makes an angle of 45^owith the current

At right angle to both the field and the current.

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

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