Three equal resistace, each of `R` ohm, are connectedd as shown in the figure. A battery of `2V` and of internal resistance `0.1` ohm is connected across the circuit. The value of `R` for which the heat generated in the circuit maximum will be

Options

A. `0.1 Omega`
B. `0.2 Omega`
C. `0.3 Omega`
D. `0.4 Omega`

Answer

C

Explanation

`(R_(eq))_(e3xt) = R//3`
`r = R//3 implies R = 3r = 3 xx 0.1 = 0.3 Omega`.