Q.

The p.d. between the ends of a wire of resistance 5 ohm, if 720 coulomb of charge passes through it per minute.

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a

20 v

b

30 v

c

60 v

d

15 v

answer is C.

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Detailed Solution

detailed_solution_thumbnail

  Potential difference  V=IR=QtR

substituting the values V=72060×5=60 V

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