Question # 1

In case of inductor , energy is stored in the

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Electric field

Magnetic field

Potential field

Gravitational field

Balmer Empirical formula explains the electromagnetic radiation of any excited atom in terms of their.

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Energy

Mass

Wave length

Momentum

For normal use:

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Emitter base function is reversed biased

Collector base junction is reserved biased

Emitter base junction is forward biased

Both c and b

A battery move a charge of 40 C around a circuit at constant rate in 20 Sec. The current will be.

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2 A

0.5 A

80 A

800 A

1 tesla =

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1 MAm^-1

1NA^-1m

1NA^-1m^-1

None of above

The electric intensity at infinite distance from the point charge is

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Infinite

Zero

Positive

Negative

If the length of solenoid is doubled but N same, B inside the solenoid becomes.

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Half

Doubled

One fourth

Four times

To convert a galvanometer into an ammeter, we connect with it a

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Shunt resistance

Low value parallel

Low value by pass resistor

All of above

Which of the following does not undergo plastic deformation.

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Copper

Wrought iron

Head

Glass

One joule of energy absorbed per kilogram of a body is

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Roentgen

Grey

Rem

Curie

A device which converts low voltage or current to high voltage or current is called.

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Transformer

AC generator

Amplifier

Rectifier

A Current flowing towards the reader is denoted by.

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Cross

a bracket

A dot

Positive sign

When Ohm meter gives full scale deflection it indicates.

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Zero resistance

Infinite resistance

Small resistance

Very High resistance

The number of crystal system are

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Three

Five

Seven

Fifteen

The north pole of a magnet is brought near a metallic ring. The direction of induced current in the ring will be:

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Antoclockwise

Clockwise

First Clockwise and then Antoclockwise

First anticlockwise and then Clockwise

The number of Isotopes of cesium are.

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4

32

22

36

How many times, the alpha particle is more massive than electrons.

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6332

7332

8332

9332

The heat produced by passage of current.

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H=I²Rt

H=IR2T

H=I/Rt

H=I²/Rt

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