A battery of emf has an internal resistance and is connected in series with an…

PHYSICS · Single correct · A Level · Physics · Electricity · Electricity

Problem

A battery of emf

\mathcal E=12\,\text{V}

has an internal resistance

r=2\,\Omega

and is connected in series with an external resistor

R=4\,\Omega

. Find the current in the circuit. (a)

3\,\text{A}

(b)

1.5\,\text{A}

(c)

2\,\text{A}

(d)

2.4\,\text{A}

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