Question # 1

A device used for detection of current is called.

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Inductor

Voltmeter

Capacitor

Galvanometer

NAND gate represented by:

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X = A. B

X = A+B

X= A.B

X=|A+B|

Target material used in x-rays tube have following properties.

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High atomic number and high melting pouint

High atomic number and low melting pouint

Low atomic number and low melting pouint

High atomic number only

A pair of quark and anti quark makes a.

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Meason

harden

Lapton

Baryon

The number of neutrons in Li are

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2

3

4

7

Gamma rays from cobalt -60 are used for treatment of.

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Circulation of blood

Cancer

Heart Attack

Thyroid glands

Electromagnetic induction is exactly according to law of:

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Momentum

Charge

Energy

Mass

The P.D develop in case of germanium is:

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0.3

0.7

0.5

0.9

Paschen series lies in the

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Far ultraviolet region

Visible region

Ultraviolet region

Inferred region

Specific resistance of a material depends upon.

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Length

Area

Temperature

Both A and B

Current passing through the coil of galvanometer

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CO/BAN

CoN /BA

NAB/CO

AN/BCO

The dimension of stress is

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[MLT^-1]

[ML^-1T]

[ML^-1T^-1]

[ML^-1T^-2]

In frequency modulation which factor changed.

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Amplitude of charge carriers

Frequency of charge carriers

Amplitude of signal

Frequency of signal

A charged particle having charge 'q' is moving at right angle to magnetic field. The quantity which varies is.

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Speed

Kinetic energy

Path of motion

angular velocity

If a charged body is moved against the electric field it will gain.

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P.E.

K.E.

Mechanical energy

Electrical potential energy

If 10 A current passes through 100 mH inductor, then energy stored is.

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100 J

5 J

20 J

Zero

When transistor are used in digital circuits they usually operate in the :

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Active region

Break down region

Saturation & cutoff regions

Linear region

The combined effect of resistance and reactance in circuit is called:

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Impedance

Inductance

Capacitance

None of above

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