1.

The inductance of an air-cored coil is proportional to1. The square of the number of turns.2. The diameter of the coil3. A form factor, F dependent on the ratio of coil radius to coil length plus winding depth.Which of the above statements are correct?

A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2 and 3
Answer» C. 2 and 3 only


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