Question # 1

Two oppositely charged balls A and B attract the third ball C, when placed near them turn by turn The third ball C must be.

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Positively charged

Negatively charged

Electrically neutral

Positively and negatively charged

NC-1 is the SI unit is

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Force

Charge

Current

Electric intensity

The force of Neutron due to field of 10² N/C is.

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1.6 x 10^-17N

1.6 x 10^-19N

Zero

1.6 x 10^-21N

the force between two charge is 28 N. If paraffin wax of relative permittivity 2.8 is introduced between the charges as medium, then the force reduces to.

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25 N

20 N

10 N

15 N

A charge Q is divided into tweo parts q and Q-q and seperated by a distance R. The force of equilibrium between them will be maximum when:

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q=Q/4

q=Q/2

q=Q

None of these

Net charge enclosed by Gaussian surface is:

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zero

maximum

depend on intensity

none of all

The electric flux through closed surface depends upon

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Charge

Medium

Geometry

Charge and Medium

Dielectric constant _εr for air is:

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1

1.006

1.0002

1.0006

The photo copying process is called

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Xerography

Inkjet Printer

Both (a) and (b)

None of these

Presence of dielectric always.

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Increase the electrostatic force

Reduces the electrostatic force

Do not effect electrostatic force

Doubles the electrostatic force

If the distance between the two charged bodies is halved, the force between them becomes.

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Double

Half

Four times

One times

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 capacitance of a capacitor depends upon.

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Thickness of plates

Charges on the plates

Voltage applied

Geometry of the capacitor

The electric field created by positive charge is

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Radially inward

Zero

Circular

Radially outward

Total flux through a closed surface depends on.

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Shape of surface

Medium only

Charge enclosed only

Charge and Medium

A capacitor is perfect in insulator for.

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Alternating current

Sparking current

Eddy current

Direct current

Concept of the electric field lines is introduced by

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Coulomb

Faraday

Einstein

Joseph henry

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Physics Fsc Part 2 Chapter 1 Online Test MCQs With Answers

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