Which of the following actions would double the magnitude of the magnetic force per unit length between two parallel current-carrying wires? a. Double both currents.
b. Double the distance between them.
c. Reduce the distance between them by half.
d. Double one of the currents.

Iread this book last year so take this with a grain of salt.gene jumps from the tree to compete with finny due to the fact that gene is always trying to do better than finny. he is put under the grasp of peer pressure due to finny almost forcing him to do this. ever since he first jumped finny kept pressuring him to jump since he thought gene enjoyed jumping.rather than uses this answer you should probably just reread chapters 3-4

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Answerboth technicians (a) and (b);