Answer
a. Energy = $1.296\times10^7 J$ in one day.
b. $L=4.05\times10^{3}H$.
Work Step by Step
a. Energy = $(150J/s)(86400s/day)=1.296\times10^7 J$ in one day.
b. $U=\frac{1}{2}LI^2$. Find the inductance.
$$L=\frac{2U}{I^2}=\frac{2(1.296\times10^7 J)}{(80.0A)^2}=4.05\times10^{3}H$$
This is not practical.
