Question

In the circuit shown in the cells are ideal and of equal emf $E$. $X$ is first joined to $Y$ and then to $Z$. After a long time:

• A. Total energy supplied by battery $B$ equals $2C{E}^2$
• B. Total energy supplied by battery $B$ equals $\frac{1}{2}C{E}^2$
• C. Heat produced in resistor $R$ is equals $2C{E}^2$
• D. Heat produced in resistor $R$ is equals $C{E}^2$

Answer 1

The correct option is B Total energy supplied by battery $B$ equals $\frac{1}{2}C{E}^2$

Total energy supplies by battery B equal to $=\frac{1}{2}C{E}^2$

when A and C are open