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4.2.3a Electromotive force

In a circuit, two identical heaters are connected in parallel. This parallel pair is connected in series with a resistor and a battery.

The battery does $J240\text{ J}$ of work moving $C60\text{ C}$ of charge around the circuit in time $t$ .

In each heater, $J90\text{ J}$ of work is done by the charge that passes through it in time $t$ .

The electromotive force (e.m.f.) of the battery is $E$ and the potential difference (p.d.) across one heater is $V$ .

What are the values of $E$ and $V$ ?

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4.2.3a Electromotive force Questions

55 exam-style questions on CIE IGCSE Physics 4.2.3a Electromotive force. Each one has a worked solution and a mark scheme showing where the marks go.

In a circuit, two identical heaters are connected in parallel. This parallel pair is connected in series with a resistor and a battery.

The battery does $J240\text{ J}$ of work moving $C60\text{ C}$ of charge around the circuit in time $t$ .

In each heater, $J90\text{ J}$ of work is done by the charge that passes through it in time $t$ .

The electromotive force (e.m.f.) of the battery is $E$ and the potential difference (p.d.) across one heater is $V$ .

What are the values of $E$ and $V$ ?

[5]

55 exam-style questions on CIE IGCSE Physics 4.2.3a Electromotive force. Each one has a worked solution and a mark scheme showing where the marks go.