EASY
12th Kerala Board
IMPORTANT
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Calculate the electrical capacitance of earth. The radius of earth is 6400 km.

Important Questions on Electrostatic Potential and Capacitance

EASY
12th Kerala Board
IMPORTANT

The electric field lines of a positive charge is as shown in figure:

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Give the sign of potential difference Vp-Vq.

EASY
12th Kerala Board
IMPORTANT

The electric field lines of a positive charge is as shown in figure. What is the shape of equipotential surface near the charge ?

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EASY
12th Kerala Board
IMPORTANT

Calculate the effective capacitance between a and b from the figure given below:

C1=C3=100 μF, C2=C4=200 μF

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EASY
12th Kerala Board
IMPORTANT

The equipotential surface through a point is normal to the electric field at that point.

What is meant by equipotential surface?

EASY
12th Kerala Board
IMPORTANT

The equipotential surface through a point is normal to the electric field at that point.

What is the work done to move a charge on an equipotential surface?

EASY
12th Kerala Board
IMPORTANT

The equipotential surface through a point is normal to the electric field at that point.

Draw the equipotential surfaces for a uniform electric field.

EASY
12th Kerala Board
IMPORTANT
How capacitance changes if the distance between the plates of a parallel plate capacitor is halved ?
EASY
12th Kerala Board
IMPORTANT

Three capacitors of capacitances 2 pF, 3 pF and 4 pF are connected in parallel.

a Write the SI unit of capacitance.