Question

For a given electric current the drift velocity of conduction electrons in a copper wire is vd and their mobility is μ . When the current is increased at constant temperature

• A. vd remains the same, μ increases
• B. vd decreases, μ remains the same
• C. vd remains the same, μ decreases
• D. vd increases, μ remains the same

Answer 1

Answer: (D)

vd increases, μ remains the same

Answer 2

The correct answer is (D) : vd increases, μ remains the same.