Question # 1

If the potential difference across two plates of capacitor is doubled, then energy stored in it will be.

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Two times

Eight times

Four times

Remain same

Electro encephalon graph is the diagnostic test for the working of.

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Eye

Heart

Brain

Lungs

The electric field lines are closer where the field is

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Strong

Weak

Uniform

Variable

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

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Parallel

Flat

Curved

Spherical

Net charge enclosed by Gaussian surface is:

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zero

maximum

depend on intensity

none of all

The SI unit of relative permittivity is.

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Fm-1

C2N-1m-2

Nm2C-2

No unit

Electron volt is the unit of.

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Potential

Potential difference

Electric current

Electric 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

Special organs called ampullae of lorenzenite are present in.

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Bats

Cats

Dogs

Sharks

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

Electric field intensity at a point is defined by the relation.

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E= q/F

E = F/q

E = qF

E = F/q2

Selenium is a

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Insulator

Photoconductor

Conductor

First insulator then conductor

The "toner" of photocopier is given:

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Positive charge

Negative charge

Remains neutral

All of above

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

Metals are good conductors of electricity because they have

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Large number of bounded electrons

Small number of electrons

Large number of free electrons

Small number of free electrons

Two metallic sphere of radius 2 cm and 4 cm get equal quantity of charge. Which has greater surface charge density ?

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2^nd sphere

Both have same

First sphere

None of these

The absolute electric potential at a point distance 20 cm from a charge of 2 uC is.

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9 x 10² V

9 x 10³ V

9 x 10⁴ V

9 x 10 ⁵ V

For which material medium, force between two charged particles is maximum.

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Ammonia

Germanium

Mica

Teflon

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Physics ICS Part 2 Chapter 12 Online MCQ's Test MCQs With Answers

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