Question

A 300v energy source delivers 500mA for 1 hour. Calculate the energy this represent.

Answer 1

Gives

V=300v

I=500mA

t=1h=3600sec

Power

$P=\frac{E}{t}$

$E=P\times t$

$P=(IV)\times t$

$E=500\times 10^{-3}\times300\times3600J$

E=540000J

E=540KJ