Exercise 27.39 A long wire carrying 4.50A of current makes two 90 ?bends, as sho
ID: 1375409 • Letter: E
Question
Exercise 27.39
A long wire carrying 4.50A of current makes two 90 ?bends, as shown in the figure (Figure 1) . The bent part of the wire passes through a uniform 0.248T magnetic field directed as shown in the figure and confined to a limited region of space.
Part A
Find the magnitude of the force that the magnetic field exerts on the wire.
Part B
Find the direction of the force that the magnetic field exerts on the wire.
Exercise 27.39 A long wire carrying 4.50A of current makes two 90 ?bends, as shown in the figure (Figure 1) . The bent part of the wire passes through a uniform 0.248T magnetic field directed as shown in the figure and confined to a limited region of space. Part A Find the magnitude of the force that the magnetic field exerts on the wire. Part B Find the direction of the force that the magnetic field exerts on the wire.Explanation / Answer
A)
as the force on a wire segment is given as
F = BIL
Here , the net force on the wire is
F = -4.5*0.6*.248 j + 4.5*0.3*.248 i
F = 0.335 i - 0.6696 j N
magnitude = sqrt(.335^2 + .6696^2)
magnitude = 0.749 N
the magnitude of force is 0.749 N
B)
theta = arctan(.6696/.335) below horizontal
theta = 63.4 degree below horizontal
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.