Electric potential and capacitors-DPP6

Electric potential and capacitors-DPP6

12th Grade - University

13 Qs

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Electric potential and capacitors-DPP6

Electric potential and capacitors-DPP6

Assessment

Quiz

Physics

12th Grade - University

Hard

Created by

salman undefined

Used 4+ times

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13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a charged capacitor, the energy resides

The positive charges

Both the positive and negative charges

The field between the plates

Around the edge of the capacitor plates

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1000 small water drops each of radius r and charge coalesce together to form one spherical drop. The potential of the big drop is larger than that of the smaller drop by a factor of

1000

100

10

1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The distance between the plates of a parallel plate condenser is 4mm and potential difference is 60volts. If the distance between the plates is increased to 12mm , then

The potential difference of the condenser will become 180volts

The P.D. will become 20volts

The P.D. will remain unchanged

The charge on condenser will reduce to one third

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The true statement is, on increasing the distance between the plates of a parallel plate condenser

The electric intensity between the plates will decrease

The electric intensity between the plates will increase

The electric intensity between the plates will remain unchanged

The P.D. between the plates will decrease

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Force of attraction between the plates of a parallel plate capacitor is

q22ϵoAK\frac{q^2}{2\epsilon_oAK}

q2ϵoAK\frac{q^2}{\epsilon_oAK}

q2ϵoA\frac{q^{ }}{2\epsilon_oA}

q22ϵoA2K\frac{q^2}{2\epsilon_oA^2K}

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

A frictionless dielectric plate S is kept on a frictionless table T. A charged parallel plate capacitance C (of which the plates are frictionless) is kept near it. The plate S is between the plates. When the plate S is left between the plates

It will remain stationary on the table

It is pulled by the capacitor and will pass on the other end

It is pulled between the plates and will remain there

All the above statements are false

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A capacitor with air as the dielectric is charged to a potential of . If the space between the plates is now filled with a dielectric of dielectric constant 10, the potential difference between the plates will be

1000volts

100volts

10volts

zero

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