Home
Class 12
PHYSICS
A parallel-plate condenser of area 100 c...

A parallel-plate condenser of area 100 `cm^(2)`, plate separation 5 mm is charged to a p.d. of 100 V when air is used between the plates. If now air is replaced by glass `(epsilon_(r)=6)` calculate (a) the new capacity, (b) the new p.d. and (c) the loss of energy. Account for the loss of energy.

A

The new capacity will be `1.062xx10^(-10)` F

B

The new capacity will be `2.062xx10^(-9)` F

C

The new potential difference is 16.7 V

D

The loss of energy is `7.37xx10^(-6)` J

Text Solution

Verified by Experts

The correct Answer is:
A, C, D
Promotional Banner

Similar Questions

Explore conceptually related problems

A parallel plate capacitor of area 100 cm^(2) and plate separation 8.85 mm is charged to a potential difference of 100 V when air is used between the plates. The capacitor is now isolated and air is replaced by glass (epsi_(r) - 5) , then:

Three plates A, B, C each of area 50 cm^(2) have separation 3 mm between A and 3 mm between B and C . The energy stored when the plates area fully charged is

A 5.80 muF parallel-plate air capacitor has a plate separation of 5.00 mm and is charged to a potential difference of 400 V . Calculate the energy density in the region between the plates, in J/m^3

A parallel plate condenser has plates of area 200 cm^(2) and separation 0.05 cm. The space between plates have been filled with a dielectric having k = 8 and then charged to 300 volts. The stored energy

A paller- plate capacitor has plate area 100cm^2 and plate separation 1.0cm.A glass plate (dielectric constant 4.0)are inserted one over the other the fill the space between the plate of the capacitor.Find the new capacitance.

A parallel-plate capacitor having plate are 100 cm ^2 and separation 1.0 mm holds a charge of 0.12 muC when connected to a 120 V battery. Find the dielectric constant of the material filling the gap.

A parallel plate capacitor is constructed with plates of area 0.0280 m^(2) and separation 0.550 mm . Find the magnitude of the charge on each plate of this capacitor when the potential between the plates is 20.1 V

A parallel plate condenser has a unifrom electric field E (V//m) in the space between the plates. If the distance between the plates is d(m) and area of each plate is A(m^(2)) the energy (joule) stored in the condenser is

A parallel plate condenser has a unifrom electric field E (V//m) in the space between the plates. If the distance between the plates is d(m) and area of each plate is A(m^(2)) the energy (joule) stored in the condenser is

A parallel - plate capacitor having plate area 20cm^2 and seperation between the plates 1.00 mm is connected to a battery of 12.0V . The plates are pulled apart to increase the separation to 2.0mm . (a ) calculate the charge flown through the circuit during the process . (b ) How much energy is absorbed by the battery during the process ? (c ) calculate the stored energy in the electric field before and after the process . (d ) Using the expression for the force between the plates , find the work done by the person polling the plates apart . (e ) Show and justify that no heat is produced during this transfer of charge as the separation is increased.