AP Physics C: Electricity & Magnetism 11.7 Kirchhoffs Junction Rule Questions

Practise applying charge conservation at circuit junctions by matching currents entering and leaving a node and comparing ideal ammeter readings.

Exam points

Apply sum I_in=sum I_out at a circuit junction to identify equal ideal-ammeter readings.

Covered syllabus points

11.7.A—Describe a circuit or elements of a circuit by applying Kirchhoff’s junction rule

[Maximum number: 1]

Questions 19-21

Figure for Question 1 — AP Physics C: Electricity & Magnetism

Two 9 V batteries and three identical $600 \Omega$ resistors are connected in a circuit, as shown above. Neglect internal resistance in the batteries and consider all meters to be ideal.

Ammeters are inserted at points I, II, III, and IV. At which of the other points would the ammeter register the same current as the ammeter at point IV ?

I only

III only

I and II only

II and III only

I, II, and III

All question bank results loaded

Covered syllabus points

Question 1