Question

Derive an expression for electric energy consumed
in a device in terms of V, I and t, where V is the
potential difference applied to it, I is the current
drawn by it and t is the time for which the current
flows ? ​

Answer 1

Explanation:

E= P×T

E=V×I×T(p=V×I)

Answer 2

Explanation:

In this way expression for electric energy consumed in a device

energy = V² / r