Question

The electric power by a device may be calculated by usimg either of the two expression P=12R or P=V2/R. The first indicates that it is directly proportional to R whereas the second expression indicates inverse proportionality.How can the seeemingly dependence of P on R in these expressions be explained

Answer 1

1-In case of , If I is constant with R.and
in case of, P is inversely proportional to R if V is constant with R.



that's all

Thanks


Sujeet