Physics Electrostatics Potential & Capacitance Electric Field and Potential,Defference,Energy and Dipole MCQ (Single Correct)

At distance of 5 cm and 10 cm outwards from the surface of a uniformly charged solid sphere, the potentials are 100V and 75V respectively. Then –

A
Potential at its surface is 150V
B
The charge on the sphere is (5/3) × 10 –10 C
C
The electric field on the surface is 1500 V/m
D
The electric potential at its centre is 225 V

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The correct answer is:
CHECK THE SOLUTION.

(a, c, d)

The potential at surface, 5 cm from surface and

10 cm from surface outwards is

From equation (ii) and (iii
∴ from equation (ii)

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