Two batteries of emf and are connected in series opposition in a closed loop with…

PHYSICS · Subjective · A Level · Physics · Electricity · Electricity

Problem

Two batteries of emf

15\,\text{V}

and

10\,\text{V}

are connected in series opposition in a closed loop with their internal resistances

0.5\,\Omega

and

0.8\,\Omega

respectively, together with an external resistor of

4.7\,\Omega

. Determine the magnitude and direction (with respect to the

15\,\text{V}

battery’s positive terminal) of the current in the loop.