Verified Solution • 2025–26 Session moderate

QAIPMT-2008-Ph-2280: NEET 2008 Physics - Class 12 AIPMT-2008-Ph-2280 Solution: The electric potential at a point in free space due to charge Q …

The electric potential at a point in free space due to charge Q coulomb is Q×1011Q\times10^{11} volts. The electric field at that point is

Multiple Choice Options

  • A 4πϵ0Q×10204\pi\epsilon_0 Q\times10^{20} volt/m
  • B 12πϵ0Q×102212\pi\epsilon_0 Q\times10^{22} volt/m
  • C 4πϵ0Q×10224\pi\epsilon_0 Q\times10^{22} volt/m
  • D 12πϵ0Q×102012\pi\epsilon_0 Q\times10^{20} volt/m

Step-by-Step Verified Solution

V = 1 4 � _ 0 _ Q R = Q _ 10 11 volt    �(i) E = 1 4 � _ 0 _ Q R 2 = V/R = Q _ 10 11 _ 4 � _ 0 _ 10 11     from ...(i) = 4 � _ 0 _ Q _ 10 22 volt/m

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