A wire 1.2 mm in diameter and 32 cm long, carries a current of 648 mA. The density of free electrons in the wire is 5.90 × 1028 m-3. The drift velocity of electrons in the wire is:

A wire 1.2 mm in diameter and 32 cm long, carries a current of 648 mA

1.	A wire 1.2 mm in diameter and 32 cm long, carries a current of 648 mA. The density of free electrons in the wire is 5.90 × 1028 m-3. The drift velocity of electrons in the wire is:
A.	3.2 × 10-5 m/s
B.	6.1 × 10-5 m/s
C.	1.8 × 10-4 m/s
D.	3.6 × 10-4 m/s
Answer» C. 1.8 × 10-4 m/s

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A wire 1.2 mm in diameter and 32 cm long, carries a current of 648 mA. The density of free electrons in the wire is 5.90 × 1028 m-3. The drift velocity of electrons in the wire is:

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