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The time required to produce 2F of electricity with a current of 2.5 amperes is

Question and options

The time required to produce 2F of electricity with a current of 2.5 amperes is
  1. 21.4 h
  2. 1200 min
  3. 5000 sec
  4. 1.5 h

Answer and explanation

Correct answer: A - 21.4 h
2 F=2×96485=192970 C2\ \mathrm{F} = 2 \times 96485 = 192970\ \mathrm{C}. t=Q/I=192970/2.5=77188 st = Q/I = 192970/2.5 = 77188\ \mathrm{s}, which is about 21.4 h.

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