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Question: When current flows through a conductor, then the order of drift velocity of electrons will be...

When current flows through a conductor, then the order of drift velocity of electrons will be

A

1010 m/sec10 ^ { 10 } \mathrm {~m} / \mathrm { sec }

B

10−2 cm/sec10 ^ { - 2 } \mathrm {~cm} / \mathrm { sec }

C

104 cm/sec10 ^ { 4 } \mathrm {~cm} / \mathrm { sec }

D

10−1 cm/sec10 ^ { - 1 } \mathrm {~cm} / \mathrm { sec }

Answer

10−2 cm/sec10 ^ { - 2 } \mathrm {~cm} / \mathrm { sec }

Explanation

Solution

Order of drift velocity

=10−4 m/sec=10−2 cm/sec= 10 ^ { - 4 } \mathrm {~m} / \mathrm { sec } = 10 ^ { - 2 } \mathrm {~cm} / \mathrm { sec }