IB Physics SL D.2.5 Charge transfer
Practise explaining charging by induction or contact in terms of electron flow, grounding, and the final charge left on conductors.
- Syllabus
- First assessment 2025
- Objective
- —
- Level
- SL
Exam points
- interpret grounding with a nearby charged rod to decide the conductor’s net charge before and after removal steps
- explain charging in terms of electron flow, for example electrons leaving a sphere so it becomes positively charged
D.2.5—Charge transfer question 1
A positively charged rod is near a metal plate that is grounded as shown.
The grounding wire and then the rod are removed. What is correct about the overall charge on the plate before and after grounding is removed?
Charge on plate before
grounding is removed
Charge on plate after
grounding is removed
neutral
neutral
neutral
negative
negative
neutral
negative
negative
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