A cell of emf and internal resistance is connected to a resistor

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

Problem

A cell of emf

24\,\text{V}

and internal resistance

2\,\Omega

is connected to a

10\,\Omega

resistor. How much heat (in joules) is produced in the external resistor in

2\,\text{minutes}

? (a)

6912\,\text{J}

(b)

4800\,\text{J}

(c)

2400\,\text{J}

(d)

5760\,\text{J}

Related theory

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