Question # 1

Coulomb's force is:

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Conservative force

None conservative force

Similar to frictional force

None of the above

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 electrostatic force between two charges is 42 N, If we place a dielectric of E_y=2.1 between the charges then the force become equal to.

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42 N

88.2 N

20 N

2 N

Some charge is being given to a conductor. Then its potencial

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Its maximum at surface

Its maximum at Its maximum at center

Is remain same throughout the conductor

Is maximum somewhere between surface and centre

The capacitance of a capacitor depends upon.

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Thickness of plates

Charges on the plates

Voltage applied

Geometry of the capacitor

In Millikan's oil drop experiment a charged particle of mass 'm' is in equilibrium in an will

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Zero

g/2

g

2g

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

Farad is defined as

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"Coulomb/Volt

Ampere /Volt

Coulomb /Joule

Volt/Coulomb

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

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Parallel

Flat

Curved

Spherical

The electric field in some region of of space is uniform in magnitude and direction. Which one of the following five statements best desccribes the volume charge density (ρ) , in this region of space?

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ρ = 0

ρ decreases linearly in the direction of the electric field

ρ increases linearly in the direction of the electric field

ρ has a uniform value throughout the region

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

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Eye

Heart

Brain

Lungs

Concept of the electric field lines is introduced by

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Coulomb

Faraday

Einstein

Joseph henry

Which one is photo conductor.

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Copper

Selenium

Mercury

Aluminium

Coulomb /volt is called.

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Farad

Ampere

Joule

Henry

The amount of energy equal to 1.6 x 10^-18 J is called.

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One volt

One milli volt

One electron volt

One mega electron volt

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

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Ammonia

Germanium

Mica

Teflon

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

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

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