Two aluminium wires have their lengths in ratio 2:3 and radii in ratio 1:3 these are connected in parallel accross a battery of emf e and of negligible internal resistance find the ratios of drift velocities of electrons in two wires?
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Answer:
ratio of drift speed in two wires is given as 3 : 2
Explanation:
As we know that the resistance of two wires is given as
now we know that current in the wire is given as
so we have
now we can write
so we have
so we have
now the ratio of drift speed in two wires inversely depends on the length of the wire
so we will have
so we have
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Topic : Drift speed
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