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

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Work done in moving a charge $q$ coulomb on the surface of a given charged conductor of potential $V$ is

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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 22

If an

α

particle and a proton are accelerated from rest by a potential difference of

1 MV

, then the ratio of their kinetic energy will be

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

The work done in moving an electric charge

q

in an electric field does not depend upon

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 24

Three charges

- q, Q

and

- q

are placed respectively at equal distances on a straight line. If the potential energy of the system of three charges is zero, then what is the ratio of

Q : q

?

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 25

A particle

A

has charge

+ q

and a particle

B

has charge

+ 4 q

with each of them having the same mass

m .

When allowed to fall from rest through the same electric potential difference, the ratio of their speed

\frac{v_{A}}{v_{B}}

will become

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 26

If

50 Joules

of work must be done to move an electric charge of

2 C

from a point, where potential is

- 10 Volts

to another point, where potential is

V Volts

, then the value of

V

is

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 27

A proton has a mass

1.67 \times 10^{- 27} kg

and charge

+ 1.6 \times 10^{- 19} C

. If the proton is accelerated through a potential difference of

million Volts

, then the kinetic energy is

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 28

Calculate the work done in taking a charge $- 2 \times 10^{- 9} C$ from $A$ to $B$ via $C$ (in diagram)

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 29

Two electrons are moving towards each other, each with a velocity of

10^{6} m s^{- 1} .

What will be closest distance of approach between them?