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Eight charges (each $q$ ) are placed at the vertices of a regular cube of side $a .$ The electric potential energy of the configuration will be $U = 12 \times \frac{1}{4 π ε_{0}} \cdot \frac{q^{2}}{a} \times x .$ Then $x$

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Important Questions on Electrostatic Potential and Capacitance

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>EXERCISE 2.3>Q 25

An electric field exists in space as

E = 2 \hat{i} + 3 \hat{j} + 0 \hat{k} .

Find the potential difference

(V_{A} - V_{B})

between points

A (2, 2, 0)

and

B (1, 1, 0) .

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>EXERCISE 2.5>Q 46

Two parallel plates have charges

Q_{1}

and

Q_{2}

on them and the capacitance is

C .

The potential difference between them is

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>EXERCISE 2.5>Q 54

A parallel plate air capacitor is to be constructed which can store

12 μ C

of charge when operated at

1200 V .

If dielectric strength of air is

3 \times 10^{6} V m^{- 1},

the minimum plate area of the capacitor required is

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>EXERCISE 2.7>Q 79

A capacitor is charged with a di-electric slab in the space between the plates of capacitor. The battery is disconnected and the di-electric slab is pulled out of the space. Then the force of capacitor upon slab

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 4

A charge of

5 nC

is uniformly distributed on a ring of radius

4 cm .

Find the potential at the axis at a distance of

3 cm

from the centre.

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 11

There are two concentric conducting shells. The potential of outer shell is

10 V

and that of inner shell is

15 V .

If the outer shell is grounded, the potential of inner shell becomes/remains

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 20

A parallel plate capacitor of area $A$ and plate separation $d$ is filled with two dielectrics as shown. What is the capacitance of the arrangement?

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 24

Consider a neutral conducting sphere. A positive point charge is placed outside the sphere. The net charge on the sphere is then

Eight charges (each q) are placed at the vertices of a regular cube of side a. The electric potential energy of the configuration will be U=12×14πε0·q2a×x. Then x

Important Questions on Electrostatic Potential and Capacitance

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Eight charges (each $q$ ) are placed at the vertices of a regular cube of side $a .$ The electric potential energy of the configuration will be $U = 12 \times \frac{1}{4 π ε_{0}} \cdot \frac{q^{2}}{a} \times x .$ Then $x$