MEDIUM
12th West Bengal Board
IMPORTANT
Earn 100

In a parallel plate air capacitor the area of each plate is 200 cm2 and the distance of separation between the plates is 2 mm. If one plate is earthed and the other is at a potential of 300 V, Find the charge in each plate.

Important Questions on Capacitance and Capacitors

HARD
12th West Bengal Board
IMPORTANT

A parallel plate air capacitor has capacitance 10μF. It is charged by connecting to a 50 V battery. Then it is disconnected from the battery and the space between the two plates of the capacitor is filled with a material having dielectric constant 5. Compare

charge,

EASY
12th West Bengal Board
IMPORTANT

A parallel plate air capacitor has capacitance 10μF. It is charged by connecting to a 50 V battery. Then it is disconnected from the battery and the space between the two plates of the capacitor is filled with a material having dielectric constant 5. Compare

capacitance,

EASY
12th West Bengal Board
IMPORTANT

A parallel plate air capacitor has capacitance 10μF. It is charged by connecting to a 50 V battery. Then it is disconnected from the battery and the space between the two plates of the capacitor is filled with a material having dielectric constant 5. Compare

potential difference of the capacitor before and after filling it with the material 

EASY
12th West Bengal Board
IMPORTANT

A parallel plate air capacitor has capacitance 10μF. It is charged by connecting to a 50 V battery. Then the space between the plates of the capacitor is filled with a material having dielectric constant 5. Keeping it connected to the battery. Compare charge, capacitance, potential difference of the capacitor before and after filling it with the material.

EASY
12th West Bengal Board
IMPORTANT

A parallel plate air capacitor has capacitance 10μF. It is charged by connecting to a 50 V battery. Then the space between the plates of the capacitor is filled with a material having a dielectric constant 5. Keeping it connected to the battery. Compare capacitance, before and after the filling.

EASY
12th West Bengal Board
IMPORTANT

A parallel plate air capacitor has capacitance 10μF. It is charged by connecting to a 50 V battery. Then the space between the plates of the capacitor is filled with a material having dielectric constant 5. Keeping it connected to the battery. Compare the potential difference of the capacitor before and after filling it with the material.

EASY
12th West Bengal Board
IMPORTANT
What should be the distance between the two plates of parallel plate capacitor to have the same capacitance as that of a sphere of 50 cm radius. The plates to the capacitor are circular of radius 5 cm.
EASY
12th West Bengal Board
IMPORTANT
A drop of mercury is raised to a potential of 90 Volts. This is broken into 27 identical droplets. What will be the potential of each droplet?