PH-710
Charging by induction
Physics · Secondary 3 · Medium · Charging by induction
A student wants to charge a neutral metal sphere positively by induction using a negatively charged rod.
Which sequence of steps is correct?
Which sequence of steps is correct?
- Bring rod near sphere, connect far side to Earth, remove Earth, then remove rod
- Bring rod near sphere, touch rod to sphere, then remove both together
- Connect sphere to Earth, bring rod near, remove rod, then remove Earth
- Bring rod near sphere, connect near side to Earth, remove rod, then remove Earth
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