Q. The potential on the hollow sphere of radius 1 m is 100 volt. The potential at 1/4 m from the centre of sphere is :
  1. 1000 volt
  2. 500 volt
  3. 250 volt
  4. 0 volt

Dear student ,


The potential at 1/4 m i.e  0.25 m  will be  0 volt because there will be no charge at the centre . 
Regards

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