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The work done to move a charge on an equipotential surface is

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Important Questions on Electrostatic Potential and Capacitance

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CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 39

What is not true for equipotential surface for uniform electric field?

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CUET (UG)
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Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 40
Assertion: Work done in moving any charge through any distance on an equipotential surface is zero.

Reason: Potential difference between any two points on an equipotential surface is zero.
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CUET (UG)
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Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 41
Assertion: Equipotential line is perpendicular to direction of electric field.

Reason: In equipotential surface, electric field is zero.
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CUET (UG)
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Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 42
The electric potential in a certain region of space is given by V=-3x2+4x, where, x is in metres and V is in volts. In this region, the equipotential surfaces are,
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Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 43
Work done in carrying a charge Q′ once round the circle of radius r with a charge Q at the centre is
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 44
What is not true for equipotential surface for uniform electric field?
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 45
An alpha particle of energy 5 MeV is scattered through 180° by a fixed uranium nucleus. The distance of closest approach is of the order of
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Achieve CUET (UG) Physics Practice Book>Chapter 2 - Electrostatic Potential and Capacitance>Exercise>Q 46
A particle of mass 2 g and charge 1 μC is held at rest a frictionless horizontal surface at a distance of 1 m from a fixed charge 1 mC. If the particle is released, it will be repelled. The speed of the particle when it is at a distance of 10 m from the fixed charge is,