A loop of wire has a current I flowing through it. Ifthe current is increased by

Question

A loop of wire has a current I flowing through it. Ifthe current is increased by a factor of 3, the field at the centerof the loop will

A) increase by a factor of 3.
B) decrease by a factor of 3.
C) can't be determined.
D) remain the same.
I just wanted to confirm to see if I was on the right track.Thank you A loop of wire has a current I flowing through it. Ifthe current is increased by a factor of 3, the field at the centerof the loop will

A) increase by a factor of 3.
B) decrease by a factor of 3.
C) can't be determined.
D) remain the same.
I just wanted to confirm to see if I was on the right track.Thank you

Explanation / Answer

B = Ni/2r is permeability of free space = 4 x 10^7 h/m B is the magnetic field magnitude in teslas i is the current in amperes N is the number of turns r is the radius of the solenoid 1. A) increase by a factor of 3.

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