Answer:
The answer is 2.628 x 10^-7joules
Step-by-step explanation:
Power = work done ÷ time
Making work done subject of the formula:
Work done = power dissipated x time
Work done = 7.3 x 10^-11 x 3600seconds
3600 seconds is gotten when you convert one hour to seconds.
Therefore,
Work done = 2.628 x 10^-7joules
Note that the value of the current is extraneous and therefore wasn't used.