The Current Density Is the Same in Two Wires

question 17

Multiple Choice

The current density is the same in two wires.Wire A has twice the free electron concentration of wire B.The drift speed of electrons in A is:

• A)twice that of electrons in B
• B)four times that of electrons in B
• C)half that of electrons in B
• D)one-fourth that of electrons in B
• E)the same as that of electrons in B

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