Magnitude of Magnetic force on Wire

  • #1
An isolated segment of wire of length L=4.50 m carries a current of magnitude i=35.0 A at an angle theta=50.3 degrees with respect to a constant magnetic field with magnitude B= 6.70E-2 T. What is the magnitude of the magnetic force on the wire?
a) 2.66 N
b) 3.86
c) 5.60 N
d) 8.12 N
e) 11.8 N
What I did was:
F=ILxBsin(theta)
=(35.0A)(4.50m)*( 6.70E-2T * sin(50.3 degrees))
I got 8.12 N but I checked on the back of the book and it says that the answer is (e) but I dont know how to get that.
 

Answers and Replies

  • #2
998
15
Your answer is OK
 
  • #3
Redbelly98
Staff Emeritus
Science Advisor
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I agree that 8.12 N is correct. It looks like the book has an error here.
 

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