(6%) Problem 5: Suppose 35 cm of wire is experiencing a magnetic force of 1.2 N.

Question

(6%) Problem 5: Suppose 35 cm of wire is experiencing a magnetic force of 1.2 N. Randomized Variables I 7A 35 cm 1.2 A 50% Part (a) What is the angle in degrees between the wire and the I T field if it is carrying a 7 Acurrent? sino 7 8 9 cos0 4 5 6 cotano asino acos0 acotan0 Lsinho 1 2 3 atan0 cosh0 tanh00 cotanh0 BACK SPAC CLEAR Degrees O Radians I give up Submit Hints 30% deduction per hint. ints remaining 2 Feedback 30% deduction per feedback. A 50% Part (b) What is the force in N on the wire if it is rotated to make an angle of 900 with the field? Grade Summary Deductions Potential 100% Submissions Attempts remaining: (30% per attempt) detailed view

Explanation / Answer

given,

length of the wire = 0.35 m

force = 1.2 N

current = 7 A

magnetic field = 1 T

force = B * I * l * sin(theta)

1.2 = 1 * 7 * 0.35 * sin(theta)

theta = 29.33 degree

the angle between wire and the magnetic field = 29.33 degree

if theta = 90 degree

Force = 1 * 7 * 0.35

force if it is rotated to make an angle of 90 degree = 2.45 N

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