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Course: Class 12 Physics (India) > Unit 3

Lesson 1: Drift of electrons & the origin of resistance

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Motion of electrons within a conductor

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A conductor which is connected to a battery is shown below. The circles within the conductor represent the free electrons.

Choose the option that best describes the motion of free electrons through the cross section $Y$ ‍ within the conductor.

(Choice A)
All electrons move from right to left in a straight line through $Y$ ‍.
(Choice B)
All electrons move from left to right in a straight line through $Y$ ‍.
(Choice C)
More electrons pass through $Y$ ‍ from the right side than the left side.
(Choice D)
More electrons pass through $Y$ ‍ from the left side than the right side.