MCQ practice · SSC Physics Board questions · Chapter 10: Static Electricity
To change the electric field, the potential must be-
Think it through first, then pick an option.
- a increased
- b decreased
- c changed
- d stay unchanged
Answer and explanation
Correct answer: c changed
The board's answer. Field and potential are linked: to change the field, the potential has to change, by rising or by falling.
Why the other options are wrong
- a increased: Raising the potential does change the field, but lowering it changes the field too. Raising is not the only way, so this is not the full answer.
- b decreased: Lowering the potential changes the field, but so does raising it. Lowering is not the only way.
- d stay unchanged: If the potential stays as it is, the field does not change either. To change the field the potential has to change.
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