Answer:
Ohm's Law:
[tex]V = I R[/tex] ------------------(1)
Where V is voltage, I is current and R is resistance.
Whereas,
P = I V --------------------(2)
Where P is power, I is current and V is Voltage.
Putting (1) into (2)
=> P = I (I R) [∴ V = I R]
=> P = I²R (Derived!)
