Question

[ The energy stored in a sphere of 10cm radius when the sphere is charged to a potential of 300 volt is​

Answer 1

Answer:

Correct option is

A

5×10

−7

J

The capacitance of spherical capacitor is given as: C=

R−r

4πϵ

∘

Rr

The constant K=

4πϵ

0

1

=9×10

9

Farad/m

If R→∞ C=4πϵ

∘

r

For r=10 cm; C=

9×10

−9

0.1

The energy stored in a capacitor is given as: E=

2

1

CV

2

E=

2

1

Cv

2

=

2

1

×

9

10

−10

×300

2

J

E=5×10

−7

J

Answer 2

Answer:

It's A part...hope it helps...Mark me brainliest plss..