Questions
A potential difference of V is applied at the ends of a copper wire of length l and diameter d. On doubling only d, drift velocity
a
becomes two times
b
becomes half
c
does not change
d
becomes one fourth
detailed solution
Correct option is C
Drift velocity νd=Vρlne; νd does not depend upon diameter.Talk to our academic expert!
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A potential difference is applied across the ends of a metallic wire. If the potential difference doubled, the drift velocity
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