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Consider the Tesla coil described in
Example 30.1. If you make the solenoid out of twice as much wire, so that it has twice as many
turns and is twice as long, how much larger is the mutual inductance? (i) M is four times greater;
(ii) M is twice as great; (iii) M is unchanged; (iv) M is 1/2
as great; (v) M is 1/4
as great.

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