Question # 1

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

If the distance between two charges is halved and charges are also doubled, then force between them will be.

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Two time

Four time

Eight time

Sixteen time

Electric potential at a distance ''r'' from ''q'' is:

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V_r = 1/54πε_∘q/r₂

Vr=1/4πε_∘²q/r

V_r=1/4πε_∘2q/r

V_r=1/4πε_∘q²/r

The electrons in one coulomb change is equal to.

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1.6 x 10^-19

2.25 x 10^-19

6.25 x 10^-18

6.25 x 10^-19

The quantity time constant RC has units of.

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Charge

Time

Capacitance

Resistance

When some di electric is inserted between the plates of a capacitor, then capacitance.

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Decreases

Increases

Becomes zero

Becomes infinity

Which material should be inserted between the plates of a capacitor in order to increase its capacitance.

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Copper

Mica

Iron

Tin

Photo copier and inkjet printer are the applications of

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Magnetism

Electricity

`.Electro magnetism

Electrostatics

Electron volt is the unit of.

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Potential

Potential difference

Electric current

Electric energy

Capacitance of a capacitor does not depend upon.

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Distance between plates

Area of plates

Electric field between plates

Medium between plates

Closeness of the electric field lines is the measure of.

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Direction of field

Strength of field

Potential difference

Uniformity of field

The photo copying process is called

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Xerography

Inkjet Printer

Both (a) and (b)

None of these

The "toner" of photocopier is given:

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Positive charge

Negative charge

Remains neutral

All of above

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

The total flux through a closed surface.

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Directly proportional to shape and geometry

Independent of medium

Depend on shape and geometry

Dependent on medium and the charge enclosed

Force per unit charge is called:

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Gravitational force

Electric field intensity

Coulomb's force

None of these

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

The electric intensity due to two oppositely charged plates is

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None of these

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Physics Fsc Part 2 Chapter 1 Online Test MCQs With Answers

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