Question

A cell of emf $\epsilon$ & and internal resistance r is connected across circuit as given in figure. For what value of R heat generated in outer circuit is maximum, $\epsilon =10V$ & $r=\frac{10}{3}\Omega$

• A. $R=5\Omega$
• B. $R=3\Omega$
• C. $R=10\Omega$
• D. Heat generated is independent of R

Answer 1

The correct option is D Heat generated is independent of R


After balancing wheatstone bridge, circuit is independent of R. So, there is no dependency of heat generated on R.