Multiple Choice
A wire 1 mm in diameter is connected to one end of a wire of the same material 2 mm in diameter of twice the length.A voltage source is connected to the wires and a current is passed through the wires.If it takes time T for the average conduction electron to traverse the 1-mm wire,how long does it take for such an electron to traverse the 2-mm wire?
A) T/4
B) T
C) 4T
D) 8T
Correct Answer:

Verified
Correct Answer:
Verified
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