Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 34

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The net capacitance of a system of capacitance as shown in the figure between points $A$ and $B$ 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 35

As in the figure, if a capacitor of capacitance $' C'$ is charged by connecting it with resistance $R,$ then energy given by the battery will be

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 36

There are two identical capacitors, the first one is uncharged and filled with a dielectric constant

K

while the other one is charged to potential

V

having air between its plates. If two capacitors are joined end to end, the common potential will be

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 37

If initial charge on all the capacitors were zero, work done by the battery in the circuit shown is

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 38

A capacitor of capacitance

C

is charged with the help of a

200 V

battery. It is then discharged through a small coil of resistance wire embedded in a thermally insulated block of specific heat capacity

2.5 \times 10^{2} \frac{J}{kg}

and mass

0.1 kg .

If the temperature of the block rises by

0.4 K

, the value of

C

is

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 39

Which of the following is not true?

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 40

How many

1 μF

capacitors must be connected in parallel to store a charge of

1 C

with a potential of

110 V

across the capacitors ?

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 41

A hollow metal sphere of radius

10 cm

is charged such that the potential on its surface becomes

80 V

. The potential at the centre of the sphere is

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 42

Charge

q_{2}

is at the centre of a circular path with radius

r .

Work done in carrying charge

q_{1}

once around this equipotential path, would be