Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 16

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Five capacitors are connected as shown in the diagram. Calculate equivalent capacitance between the points $x$ and $y$ .

Important Questions on Electrostatic Potential and Capacitance

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 17

Keeping the voltage of the charging source constant, what would be the percentage change in the energy stored in a parallel plate capacitor if the separation between its plates were to be decreased by

10 %

?

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 21

A parallel plate capacitor with air between the plates has a capacitance of

8 pF (1 pF = 10^{- 12} F)

. What will be the capacitance of the distance between the plates is reduced by half, and the space between them is filled with a substance of dielectric constant

6

?

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 23

Determine expression for potential energy of an electric dipole in external electric field.

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 1

Three isolated equal charges are placed at the three corners of an equilateral triangle as shown in figure. The statement which is true for net electric potential $V$ and net electric field intensity $E$ at the centre of the triangle is

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 2

The potential at a point

0.1 m

from an isolated point charge is

+ 100 Volts

. The nature of the point charge is

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 3

A charge of

10 μ C

is placed at the origin of

x - y

coordinate system. The potential difference between two points

(0, a)

and

(a, 0)

in

volt

will be

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 4

Four charges of same magnitude

q

are placed at four corners of a square of side

a .

The value of electric potential at the centre of the square will be (where

k = \frac{1}{4 π ε_{0}})

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 5

Two identical positive charges are placed on the

y

-axis at

y = - a

and

y = + a

. The variation of

V

(electric potential) along

x

-axis is shown by graph