Electrostatic Potential And Capacitance

- Want to practice more questions? Here are the Medium level questions
1

When a charged conductor is placed near another conductor (which is connected to the ground), its potential :

A
always increases.
B
always decreases.
C
may increase or decrease.
D
remains the same.

Twenty seven identical mercury drops each charged to , are allowed to form a big drop. The potential of the big drop is

A
B
C
D

Three charges are placed at equal distance on a straight line. If the total potential energy of the system is zero, then is:

A
B
C
D
What is the shape of the equipotential surface for the line charge?
A
Sphere
B
cylinder
C
will depend upon the type of charge.
D
can't say.

In a uniform electric field a charge of experiences a force of . The potential difference between two points apart along the electric lines of force will be:

A
B
C
D

A hollow metal sphere of radius is charged such that the potential on its surface is . The potential at the centre of the sphere will be:

A
B
C
D

The potential at the origin is zero due to electric field . The potential at point  is:

A
 
B
C
D

The potential difference across condenser is :

A
B
C
D
When two condensers of capacitance and are connected is series then the effective capacitance will be :
A
B
C
D