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

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A parallel plate capacitor after charging is kept connected to a battery and the plates are pulled apart with the help of insulating handles. Now which of the following quantities will decrease ?

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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 43

In the circuit below, if a dielectric is inserted into $C_{2}$ then the charge on $C_{1}$ will

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 44

A capacitor with plate separation

d

is charged to

V

volts. The battery is disconnected and a dielectric slab of thickness

\frac{d}{2}

and dielectric constant

' 2'

is inserted between the plates. The potential difference across its terminals becomes

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 45

An uncharged parallel plate capacitor having a dielectric of constant

K

is connected to a similar air cored parallel capacitor charged to a potential

V

. The two capacitors share charges and the common potential is

V^{'}

. The dielectric constant

K

is:

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 46

A battery does

200 J

of work in charging a capacitor. The energy stored in the capacitor is

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Gamma Question Bank for Medical Physics>Chapter 17 - Electrostatic Potential and Capacitance>Assignment>Q 47

Two identical capacitors are connected in parallel across a potenial difference

V .

After they are fully charged, the positive plate of first capacitor is connected to negative plate of second and negative plate of first is connected to positive plate of other. The loss of energy will be

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

In figure, four point $A, B, C$ and $D$ are located in the region of uniform electric field $E$ . Select the correct option.

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

Three charges

- Q, - q

and

2 q

are placed at the vertex of equilateral triangle of side length

L .

If potential at centre is zero then correct relation is

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

The value of electric potential at any point due to any short electric dipole is (Where

\vec{p}

is dipole moment,

\vec{r}

is position of point and

k = \frac{1}{4 π ε_{0}})