Internal resistance of a cell of emf 12 V is 0.05 $\Omega$. Find th...

Question

Internal resistance of a cell of emf 12 V is 0.05 $\Omega$. Find the voltage across the cell when a current of 60 A is drawn from it.

Accepted Answer

Terminal voltage formula $V = E - Ir$:
$$V = 12 - (60 	imes 0.05) = 12 - 3 = 9 	ext{ V}$$