Question # 1

Net charge enclosed by Gaussian surface is:

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zero

maximum

depend on intensity

none of all

Flux through any closed surface is:

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1/ε²_∘ times the total charge enclosed in it

ε²_∘ time the total charge enclosed in it

1/ε_∘ ties the total charge enclosed in ti

ε_∘ time the total charge enclosed in it

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 electric intensity at infinite distance from the point charge is

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Infinite

Zero

Positive

Negative

The electric intensity due to two oppositely charged plates is

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None of these

Intensity of field inside a hollow charged sphere will be.

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Negative

Unaffected

Zero

Maximum

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

Two opposite point charge of same magnitude separated by distance 2d, electric potential mid way between them is.

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1 V

2 V

Zero

V/2

A changing electric flux creates.

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Electric fields

Gravitational

Magnetic field

Electric charge

The relative permitivity of air is

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79.5

1.006

1.06

1.0006

Special organs called ampullae of lorenzenite are present in.

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Bats

Cats

Dogs

Sharks

An ECG records the _____ between points on human skin generated by electric process i the heart.

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Heart beat

Pulse rate

Pressure

Voltage

Coulomb's force is:

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Conservative force

None conservative force

Similar to frictional force

None of the above

An electric field cannot deflect

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X-rays

a-particles

ß-particles

None of these

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

Photo copier and inkjet printer are the applications of

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Magnetism

Electricity

`.Electro magnetism

Electrostatics

Concept of the electric field lines is introduced by

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Coulomb

Faraday

Einstein

Joseph henry

For computation of electric flux, the surface area should be.

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Parallel

Flat

Curved

Spherical

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