Question

How many kJ of energy is spent when a current of 4 amp passes for 200 second under a potential of 115 V ?

• A. 52 kJ
• B. 72 kJ
• C. 82 kJ
• D. 92 kJ

Answer 1

The correct option is D 92 kJ

$\Delta G=-nFE=-QE=-4\times 200\times 115\times {10}^{-3}kJ$ $\Delta G=-92kJ$
The energy spent by the source = 92 kJ