What is the ratio of heat generated in `R` and `2 R`?

Options

A. `2:1`
B. `1:2`
C. `4:1`
D. `1:4`

Answer

A

Explanation

(a) Both `R` and `2R` in parallel `(V -` constant)
So using `P = (V^(2))/(R ) implies (P_(1))/(P_(2)) = (R_(2))/(R_(1)) implies (H_(1))/(H_(2)) = (R_(2))/(E_(1)) = (2)/(1)`