Electrostatics and charge motion: If point A is at a lower electric potential than point B, how does an electron between A and B move? Assume the electron is free to move along the line joining A and B with no other forces. Choose the correct option.
IIT JEE
Physics
Difficulty: Easy
Choose an option
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AFrom B to A (toward lower potential)
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BFrom A to B (toward higher potential)
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CRemains at rest
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DOscillates randomly
Answer
Correct Answer: From A to B (toward higher potential)
Explanation
ConceptElectric field points from higher potential to lower potential. An electron (negative charge) accelerates opposite to E, i.e., toward higher potential.
Final AnswerFrom A to B (toward higher potential)