Question # 1

Which device is used to store charge:

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Resister

Capacitor

Dielectric

Fuse

If the distance between two point charges is reduced to half, the coulomb’s force become:

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Half

Two times

One fourth

Fourth times

A current carrying conductor produces a field around it is called:

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Electric field

Magnetic field

Both a and b

None of these

The S.I unit of electric power is:

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Volt

Watt

Ampere

Joule

When 1 kg of Uranium -235 is fused then energy released is

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67 x 10¹⁰ J

67 x 10⁷J

67 J

7 J

In C.R.O grid is always connected with potential:

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Negative

Positive

High positive

Zero positive

Information storage devices work on the principles of

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Heat

Sound

Light

Magnetism

The displacement produced in the spring is directly proportional to force is called:

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Hook’s law

Boyle’s law

Newton’s law

Joule’s law

the resistance of conductor is inversely to:

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temperature

length

area of cross section

pressure

The output of an AND gate is only 1, when:

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Both of its inputs are zero

Anyone of the two inputs is zero

Both of its inputs are 1

Anyone of the two inputs is 1

Boolean expression for AND operation is:

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X = A̅

X = A + B

X = A . B

X = A̅B̅

The refractive index of ice is:

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1.00

1.33

1.31

2.42

The amount of current that can be painful is:

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0.005A

0.001A

1A

2A

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