Question # 1

The effective way to increase the sensitivity of moving coil galvanometer is.

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Increase the area of coil

Increase the number of turn

Increase the magnetic field

Increase the value of constant C

The ability of a body to return to its original shape is called.

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Strain

Stress

Elasticity

Plasticity

When a nucleus emits an alpha particle, its atomic mass decreases by

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1

2

3

4

The unit of radioactivity is:

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Bequerel

Henry

Pascal

Joule

Energy stored in an inductor is:

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1/2L²I

1/2L²/I

_1/2LI²

1/2LI

Charge on an atom is:

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Positive

Negative

Neutral

None of these

B2/2p is the expression of.

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Lenz's law

Magnetic energy

Magnetic energy density

Back emf

Controlling rods inserted into the reactor are of metal:

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Aluminium

Cadmium

Magnesium

Copper

In purely resistive A.C circuit, instantaneous value of voltage and current:

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Current lags behind voltage

Current leads voltage by π/2

Both are in Phase

Voltage leads current by Pase θ=π/2

A real transformer does not change.

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Voltage level

Current level

Power level

Frequency

The mass spectrum of naturally occurring neon shows the most abundant isotope has atomic mass.

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19

20

21

22

If current flowing through a solenoid becomes four times, then magnetic field inside becomes.

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two times

three times

four times

Half

Output of D.C. motor is

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A.C. energy

Mechanical energy

Chemical energy

D.C. energy

The word amorphous means:

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Regular structured

Without form or structure

Frozen structured

None of above

The net charge on a capacitor magnitude of charge of charge

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Infinity

2 q

Q/2

Zero

The process by which lesser beam can be used to generate 3-dimensional images of objects is called

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Holography

Geo graphy

Tomography

Radio graphy

The highest value reached by the voltage or current in one cycle is called.

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Peak ot peak value

Peak value

Instantaneous value

Root mean square value

In Compton effect the photon behaves as a.

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Wave

Particle

Nucleon

Both a and b

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