Q.

If 4×1020eV energy is required to move a charge of 0.25 coulomb between two points. Then what will be the potential difference between them

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a

178 V

b

256 V

c

356 V

d

None of these

answer is B.

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Detailed Solution

By using, KE=QV⇒4×1020×1.6×10−19=0.25×V ⇒V=256 volt
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If 4×1020eV energy is required to move a charge of 0.25 coulomb between two points. Then what will be the potential difference between them