EASY
CUET (UG)
IMPORTANT
Earn 100

Assertion: For practical purposes, the Earth is used as a reference at zero potential in electrical circuits.
Reason: The electrical potential of a sphere of radius R with charge Q uniformly distributed on the surface is given by Q4πε0R.

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Important Questions on Electrostatic Potential and Capacitance

EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 57
Assertion: Across the surface of a charged conductor potential is discontinuous.

Reason: Electrostatic force is a conservative force.
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 58
Assertion: In any condition when a conducting sphere is charged then the charge on it must be distributed uniformly over it surface because it is a sphere

Reason: The surface of a conducting body is an equipotential surface.
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 59
Assertion: A charged metal plate has the same potential at all points on its surface & different distribution of charge.

Reason: As conductors have uniform distribution of charge, so potential & charge distribution is same at every point.
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 60
Assertion: Two spherical cavities are made inside a conductor having charge Q. Two point charges q1 and q2 are kept at the centres of cavity and another charge q is kept outside the conductor. Electric field due to charge on outer surface of conductor is zero at a point inside the conductor.

Reason: In the above assertion electric potential is constant inside the conductor in static condition.
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 61
Assertion: Electric field inside the metal is zero when it is placed in external electric field.

Reason: In metal, induced electric field is equal and opposite of applied field.
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 62
Assertion: The whole charge of a conductor cannot be transferred to another isolated conductor.

Reason: The total transfer of charge from one to another is not possible.
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 63
In the following a statement of Assertion is followed by a statement of Reason.

Assertion: Charged metallic surface in electrostatic condition is always an equipotential surface.

Reason: There is no component of electric field (in electrostatic condition) parallel to charged metallic surface.
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 64
A point charge Q is placed at a distance 2R from centre of an uncharged metallic sphere of radius R, select the correct alternative

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