IB Physics HL B.5.11 Kirchhoff’s laws Question Bank

Practise IB Physics HL B.5.11 by solving multi-loop circuits with Kirchhoff’s conservation laws, emf sources, ammeters and op-amp-linked evidence.

Exam points

Combine junction and loop equations with current directions and emf signs to solve multi-source circuits.
Justify Kirchhoff relations through conservation of charge and energy while interpreting measured currents and voltages.

[Maximum number: 5]

(a)

Identify the laws of conservation that are represented by Kirchhoff's circuit laws.

[ 2 ]

(b)

The voltmeter is used in another circuit that contains two secondary cells.

Cell A has an emf of 10 V and an internal resistance of $1.0 \Omega$ . Cell B has an emf of 4.0 V and an internal resistance of $2.0 \Omega$ .

[ 3 ]

(i)

Calculate the reading on the voltmeter.

[ 3 ]

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