Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 3

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In moving a unit positively charged body from point $A$ to point $B$ , external work done is $40 J$ and body acquires a kinetic energy of $20 J .$ The potential difference, $V_{B} - V_{A}$ , is

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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>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 5

In which of the following case, potential at point

O

is not zero?

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 6

In any region, if electric field is define as

\vec{E} = (\hat{i} + 2 \hat{j} + \hat{k}) V / m

, then the potential difference between two points

A (0, 0, 0)

and

B (2, 3, 4)

in that region, is

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 7

If the potential function is define as

V = (- 3 x + 4 y + 12 z) V,

then magnitude of electric field

E (x, y, z)

is

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 8

From the following graph, find the value of $| \vec{E} |$ at $r = 3.5 m$

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 9

If the given figure shows equipotential surfaces, then the magnitude of electric field is

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 10

A uniform electric field of $200 {Vm}^{- 1}$ is directed at $45 °$ with $x -$ axis as shown in figure. The co-ordinates of point $P$ and point $Q$ are $(1, 0)$ and $(0, 2) .$ Find the potential difference, $V_{P} - V_{Q}$ (in volts).

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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