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Electric field and potential inside hollow charged conducting sphere are respectively ( $q =$ charge on sphere, $R =$ Radius of sphere, $r =$ distance from centre of sphere)

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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 2.4>Q 40

Two insulated charged conducting spheres of radii

20 cm

and

15 cm

, respectively and having an equal charge of

10 μC

are connected by a copper wire and then, they are separated. Then,

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>EXERCISE 2.4>Q 41

A solid conducting sphere having a charge

Q

is surrounded by an uncharged concentric conducting hollow spherical shell. Let the potential difference between the surface of the solid sphere and that of the outer of hollow shell be

V .

If the shell is now given a charge of

- 3 Q,

the new potential difference between the same two surface is,

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>EXERCISE 2.4>Q 42

In a uniform electric field $E = 100 V m^{- 1},$ the potential difference $V_{A} - V_{B},$ where $A B = 10 \sqrt{2} m,$ is

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>EXERCISE 2.4>Q 43

A soap bubble of radius

3 cm

is charged with

9.0 nC .

The excess pressure inside the bubble, if surface tension of soap solution

= 3 \times 10^{- 3} N m^{- 1}

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>EXERCISE 2.5>Q 44

A charge

Q .

is given to a conducting sphere of radius

R .

The total energy stored is

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Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>EXERCISE 2.5>Q 45

Two cylindrical capacitors has radii of inner and outer plates as

(a, b)

and

(c, d)

respectively. If they have same length and same capacitance, then

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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 47

In a spherical capacitor with plate radii

a

and

b,

the potential difference between the plates is

V .

The electric field between the plates at a radial distance

r

from centre is

Electric field and potential inside hollow charged conducting sphere are respectively (q= charge on sphere, R= Radius of sphere, r= distance from centre of sphere)

Important Questions on Electrostatic Potential and Capacitance

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Electric field and potential inside hollow charged conducting sphere are respectively ( $q =$ charge on sphere, $R =$ Radius of sphere, $r =$ distance from centre of sphere)