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JEE PHYSICS MCQ: ELECTRIC POTENTIAL AND CAPACITANCE

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Analyzing +4 | -1

Assertion: Two adjacent conductors of unequal dimensions, carrying the same positive charge have a potential difference between them.

Reason: The potential of a conductor depends upon the charge given to it.

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Correct option: B

Both assertion and reason are true but reason is not the correct explanation of the assertion

Option B is correct. Both the assertion and reason are true, but the reason doesn't fully explain why the potential difference exists; it's more about the charge distribution and geometry.

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The potential at a point distance

x

\mu \mathrm{m}

) due to some charges situated on the

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V(x)=\frac{20}{x^2-5} \mathrm{V}

. The electric field at

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is given by: A parallel plate capacitor is connected to a 5V battery and charged. The battery is then disconnected and a glass slab is introduced between the plates. Then, the quantities that decrease are A conducting sphere of radius

R

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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

16\mu F

. 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.
Statement-2: The magniude of dipole moment of individual polar molecule decreases significantly with increase in temperature. An electric dipole when placed in a uniform electric field

E

will have minimum potential energy, if the positive direction of dipole moment makes the following angle with

E