#### Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Click to Chat

1800-5470-145

+91 7353221155

CART 0

• 0
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

# if a charged sphere conductor of radius 10 cm has potential V at a point distance 5cm from its centre then potential at a point distance 15cm from the centre will be?

Arun
25763 Points
3 years ago
Dear Avinash

The potential inside a conductor is the same everywhere (if it wasn't, potential differences would exist and currents would flow internally until the charges redistributed and made the internal potential the same everywhere).
So everywhere, including the surface, of the conductor is at a potential of V.
Outside the sphere, the potential is given by k/r
This means the external potential is inversely proportional to distance from centre.
15cm is 3/2 times bigger than the radius (10cm), so the potential at 15cm is 3/2 times smaller than the potential at the surface.
Potential = V/(3/2) = (2/3)V

Regards