A straight segment of wire of length 5.00 cm carries a current of 2.44 A in the

Question

A straight segment of wire of length 5.00 cm carries a current of 2.44 A in the positive y-direction. If the magnetic field in that region is 1.50 T in the positive x-direction, what is the magnitude of the magnetic force on the wire?

0.183 N (Correct)

What is the direction of the magnetic force on the wire? +/- x, +/- y, or +/- z.

Incorrect attempts are as pictured.

Submitted Answer Submission Try When Incorrect. Tue Mar 8 11:08:48 (Try 1) am 2016 (CST) Incorrect. Tue Mar 8 03:23:42 (Try 2) pm 2016 (CST) Incorrect. Tue Mar 8 03:30:35 (Try 3) pm 2016 (CST) Incorrect. Tue Mar 8 03:35:12 (Try 4) pm 2016 (CST) -X 2 -y 3 +X 4

Explanation / Answer

Here,

length of wire , L = 0.05 j cm

I = 2.44 A

magnetic field , B = 1.50 i T

Now, for the magnetic field

F = IL X B

F = 2.44 * 0.05 j X 1.50 i

F = 0.183 (-k) N

the magnitude of magnetic field is 0.183 N

as force is in -k

the direction of magnetic force is -ve z - direction

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