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JEE PHYSICS MCQ: ELECTRIC POTENTIAL AND CAPACITANCE

1 Easy

1 of 1

Application +4 | -1

A point

A

is at potential

+500 \mathrm{~Volt}

and

B

is a point of potential

-500 \mathrm{~Volt}.

The work done by an external agent to take a unit positive charge from

A

to

B

is

View answer and explanation

Correct option: B

-1000J

Option B (-1000J) is correct because the work done by an external agent is the negative of the potential difference multiplied by the charge.

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Q

. The electric potential and the electric field at the centre of the sphere respectively are Two capacitors when connected in series have a capacitance of

3\mu F,\,

and when connected in parallel have a capacitance of

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. Their individual capacities are Statement-1: If temperature is increased, the dielectric constant of a polar dielectric decreases whereas that of a non-polar dielectric does not change significantly.
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E

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