Question

A parallel plate capacitor having a plate separation of 2mm is charged by connecting it to a 300v supply. The energy density is

Answer 1

Answer:

The energy density of parallel plate capacitor is given by

U=

2

1

εE

2

=

2

1

ε(

d

V

)

2

U=

2

1

×8.85×10

−12

Nm

2

C

2

×(

2×10

−3

300volts

)

2

U=0.1J/m

2