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 about the resistance across the ends of the wires is true?
A) The resistance of wire #1 is twice as high as that of wire #2.
B) The resistance of wire #1 is equal to that of wire #2.
C) The resistance of wire #1 is half that of wire #2.
D) The resistance of wire #1 is four times higher than that of wire #2.
Correct Answer:
Verified
Correct Answer:
Verified
Q152: How much current will flow through a
Q153: A fully charged 37-µF capacitor is discharged
Q154: A multiloop circuit is shown in the
Q155: Each of the resistors shown in the
Q156: A toaster is rated at 800 W
Q158: Four resistors are connected across an ideal
Q159: A total of 2.0 × 10<sup>13</sup> electrons
Q160: A 2.0-μF capacitor is charged to 12
Q161: A 25-W soldering iron runs on 110
Q162: When a 14.0-A current flows through an