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Q.

If the electrical potential of the inner metal sphere is 10V & that of the outer shell is 5V, then the potential at the centre will be:
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a

15 V

b

0 V

c

10 V

d

5 V

answer is D.

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Detailed Solution

The electric field inside a shell is zero. So, the potential inside shell is equal to the potential at surface of the shell. Since the potential of inner shell is 10 V, so at the centre potential is also same i.e 10 V. 

 

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