Question

Express power p in terms of current i and resistance r

Answer 1

Answer:

Heat = I²RT where I is current , R is resistance offered and T is time period.

since heat is synonymous with energy , and power is defined as energy per unit time , we can say that heat per unit time is also power

ie: H/T = Power

thus , P = H/T = I²RT/T thus ,

P = I²R Watt.