The first solenoid has 2 times the diameter, 2 times the number of turns, and 2 times the length of the second solenoid. Which solenoid has the greater inductance and by what factor?
a. the first solenoid by a factor of 8
c. the first solenoid by a factor of 16
b. the second solenoid by a factor of 8
d. the second solenoid by a factor of 32
A
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