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IB Physics SL D 2 3 Charge Conservation Questions

Practise IB Physics SL D.2.3 by applying conservation of electric charge to reactions, conductors and circuit junctions.

Syllabus
First assessment 2025
Course
Physics SL
Level
SL

Exam points

  • State that total electric charge is conserved in an isolated system.
  • Track charge before and after particle reactions or charge transfer.
  • Apply charge conservation at a circuit junction and to connected conductors.

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Study D.2.3—Charge conservation conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Physics SL D 2 3 Charge Conservation Questions question 1

[Maximum number: 1]

The diagram shows a junction in a circuit.

Figure for Question IB Physics SL D 2 3 Charge Conservation Questions question 1 — IB Physics SL

The currents in the three wires are related by I1=I2+I3I_{1}=I_{2}+I_{3}.
State the fundamental law of Physics from which this relation is derived.

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