A cell of internal resistance 2 π supplies current to a 6 π resistor. The efficiency of the cell is

A cell of internal resistance 2 π supplies current to a 6 π resistor. The efficiency of the cell is

Answer Details

Internal resistance determine the maximum current that can be supplied

Efficiency = $\frac{r}{R}$ × 100

= $\text{frca}26$ × 100

= 33.3%