Question # 1

In carbon resistors, then value of Blue colour is.

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6

7

8

9

The Si unit of Mutual inductance is:

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VA^-1S^-1

VAS^-1

VSA^-1

ASV^-1

By emitting Beta particle and gama particle simultaneously the nucleolus changes in its charges by

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N

N/2

N/4

3N/4

A moving charge is surrounded by:

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2 Fields

3 Fields

4 Fields

None of these

Power dissipated in a pure inductor is.

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Large

Small

Infinite

Zero

The radius of 10th orbit in hydrogen atom is.

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0.053 nm

0.53 nm

5.3 nm

53 nm

Curie temperature is a point where :

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Diamagnetism changes to paramagnetism

Paramagnetism changes to Diamagnetism

Ferromagnetism changes to paramagnetism

Paramagnetism changes to Ferromagnetism

Energy density in an inductor is.

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Directly proportional to magnetic field

Directly proportional to square of magnetic field

Inversely proportional to magnetic field

Inversely proportional to square of magnetic 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

The magnitude of back emf:

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Increases with sped of motor

Decreases with speed of motor

Remains same

None of above

The SI unit of stress is same as that of.

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Pressure

Force

Momentum

Work

substance which undergo plastic deformation until they break are known as.

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Brittle substances

Ductile substance

Non magnetic substance

Magnetic substance

The work done is bringing a unit positive charge from infinity to that point in an electric field is called.

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Potential

Potential difference

Absolute potential

All of these

The value of Stefan is constant is:

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4.57 x 10^-8 m²k²

5.67 x10^-8 wm^-2k^-4

6.67x 10^-11 wm²k⁴

7.45 x 10^-9 m² wk³

Joule second is the unit of.

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Energy

Wein's constant

Planck's constant

Boyle's law

Various types of cancer are treated by

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Carbon -14

Nickel -63

Cobalt -60

Strontium -90

In A.C circuit of inductor which one is true

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Voltage leads current by phase angle π/2

Voltage lags current by π/2

Current leads voltage by π/2

Both remain in phase

1 Henry =

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VSA^-1

VS^-1A^-1

V^-1SA

VSA^-2

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