Multiple Choice
Copper wire #1 has a length L and a radius b.Copper wire #2 has a length 2L and a radius 2b.Which statement is true?
A) The total resistance of wire #1 is twice as high as that of wire #2.
B) The total resistance of wire #1 is equal to that of wire #2.
C) The total resistance of wire #1 is half that of wire #2.
D) The total resistance of wire #1 is four times higher than that of wire #2.
Correct Answer:

Verified
Correct Answer:
Verified
Q23: When a voltage difference is applied to
Q24: The direction of the current I in
Q25: If a one-amp current is flowing in
Q26: A battery does 10.0 J of work
Q27: Why is it that electrons rather than
Q28: A device with a resistance of 200.0
Q29: A copper wire of length L and
Q30: The resistivity of gold is 2.44 ×
Q31: The resistivity of gold is 2.44 ×
Q33: A jeweler needs to electroplate gold (atomic