CapacitanceHard
Question
A parallel plate condenser has a uniform 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 (m2) the energy (joules) stored in the condenser is
Options
A.E2 Ad/ε0
B.
ε0 E2
ε0 E2C.ε0 EAd
D. ε0 E2Ad
ε0 E2AdSolution
Capacitance of a parallel plate condenser is
.....(i)
Potental difference across the plates is
V = Ed
Energy stored in the condenser is
[Using (i) and (ii)]
ε0 E2 Ad
.....(i)Potental difference across the plates is
V = Ed
Energy stored in the condenser is
[Using (i) and (ii)] ε0 E2 Ad Create a free account to view solution
View Solution FreeMore Capacitance Questions
Let and be three vectors. A vector in the plane of and , whose projection on is 1/√3 , is given by...A heater coil connected to a supply of a 220 V is dissipating some power P1. The coil is cut into half and the two halve...When a capacitor of value 200 μF charged to 200V is discharged separately through resistance of 2 ohm and 8 ohm, th...There are two metallic plates of a parallel plate capacitor. One plate is given a charge +q while the other is earthed a...A parallel plate capacitor with a dielectric of dielectric constant K between the plates has a capacity C and is charged...