NEET2014PhysicsElectrostaticsActual
A conducting sphere of radius R is given a charge Q . The electric potential and the electric field at the center of the sphere respectively are:
Options
- AZero and Q 4 π ε 0 R 2
- BQ 4 π ε 0 R and Zero
- CQ 4 π ε 0 R and Q 4 π ε 0 R 2
- DBoth are zero
Correct answer
B. Q 4 π ε 0 R and Zero
Step-by-step solution
This is a learning based question where we have to choose the option which is correct for the electric potential and electric field at the centre of the sphere. For a conducting sphere Electric field at centre = 0 Potential at centre = k Q R = Q 4 π ε 0   R So Option (2) will be correct.