Question # 1

Which one has the least resistance.

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Galvanometer

Ammeter

Ohm meter

Volta meter

If D.C. input for step up transformer, the output is

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Zero

High

Low

May be high or low

The wave form of alternating voltage is a

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Cotangent curve

Cosine curve

Sine curve

Tangent curve

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

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

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Impedance

Inductance

Capacitance

None of above

A charge on 4 coulomb is in the field of intensity 4N/C the force on the charge is.

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Uniform

Non uniform

Weak

Strong

To get N-Type the Ge is doped with

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Aluminium

Arsenic

Boron

Indium

For ohmic device the graph between V and I is.

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A straight line

Curve

Hyperbola

Parabola

If a charge body moved against the electric field it will again

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Potential energy

K.E

Mechanical Energy

Electric potential energy

The number of protons in any atom are always equal to the number of

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Neutrons

Electrons

Positrons

Mesoris

An atom can reside in excited state for

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10^-8 second

One second

10^-10 second

More than one second

The Balmer series is obtained when all the transition of electrons terminate on

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1^st orbit

2nd orbit

3rd orbit

4th orbit

If both the length and radius of the rod are doubled, then the modulus of elasticity will:

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Increase

Decrease

Remains the same

Doubled

Compton's effect is associated with

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gamma rays

Beta rays

X rays

Positive rays

If a charge is at rest in a magnetic field then force on charge is

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Zero

Double

One fourth

Four times

One weber is equal to:

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N.A ²/m

N.m²/A

N.A/m

N.m/A

The dead time of G.M tube is.

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10^-1 sec

10^-6sec

10^-4sec

10^-8sec

Reflecting mirrors in laser is used to

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Further stimulation

For producing more energetic lasers

Both (a) and (b)

None of these

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