Practise

Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

TopicSkillDifficulty

12 questions

SA-9702-DC2-0011 markL1 FoundationCalculatorCombining resistors

Calculate the combined resistance of

6.0

Ω and

3.0

Ω in parallel.

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SA-9702-DC2-0041 markL1 FoundationCalculatorKirchhoff's laws

Kirchhoff's first law is a consequence of the conservation of

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SA-9702-DC2-0051 markL1 FoundationCalculatorKirchhoff's laws

Kirchhoff's second law is a consequence of the conservation of

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SA-9702-DC2-0061 markL1 FoundationCalculatorKirchhoff's laws

Currents of

2.0

A and

3.5

A flow into a junction. One wire carries

1.5

A out. Calculate the current in the only other wire, which also flows out.

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SA-9702-DC2-0081 markL1 FoundationCalculatorCombining resistors

Calculate the combined resistance of four

12

Ω resistors in parallel.

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SA-9702-DC2-0091 markL1 FoundationCalculatorCombining resistors

Adding another resistor in parallel to an existing parallel network

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SA-9702-DC2-0121 markL1 FoundationCalculatorCombining resistors

For resistors in parallel, which quantity is the same for each?

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SA-9702-DC2-0022 marksL2 StandardCalculatorCombining resistors

4.0

Ω resistor is in series with a parallel combination of

6.0

Ω and

3.0

Ω across a

12

V supply of negligible internal resistance. Calculate the supply current.

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SA-9702-DC2-0031 markL2 StandardCalculatorKirchhoff's laws

In the circuit of the previous question (

2.0

A from the supply), calculate the current in the

3.0

Ω resistor.

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SA-9702-DC2-0072 marksL2 StandardCalculatorKirchhoff's laws

9.0

V cell and a

3.0

V cell are connected in a single loop with a

4.0

Ω resistor, with the cells opposing each other. Both have negligible internal resistance. Calculate the current.

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SA-9702-DC2-0101 markL2 StandardCalculatorKirchhoff's laws

12

V supply is connected across a

2.0

Ω and a

4.0

Ω resistor in series. Calculate the p.d. across the

4.0

Ω resistor.

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SA-9702-DC2-0113 marksL3 ExamCalculatorKirchhoff's laws

Two cells, each of e.m.f.

6.0

V and internal resistance

1.0

Ω, are connected in parallel (positive to positive) across a

2.5

Ω resistor. Calculate the current in the resistor.

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