Finding the force of magnetic field lines

[itsmarasilly]

Homework Statement

A wire carrying 15 A of current has a length of 17 cm in a magnetic field of 0.80 T. The force on a current-carrying wire in a uniform magnetic field can be found using the equation F = BIL sin θ. Find the force on the wire for each of the following angles between the wire and the magnetic field lines. ( (a) 90° )

Homework Equations

F = BIL
Sin = Opposite/Hypotenuse
17 cm / 100 = .17 m

The Attempt at a Solution

F = 15*.17*.8*sin(90)
= 1.8238 N

 

[Redbelly98]

Looks like you did the multiplication wrong.

F = 15*.17*.8*sin(90) is correct.

 

[nlightner]

I would like to commend the student for correctly using the equation F = BIL sin θ to find the force on the current-carrying wire. However, I would like to point out that the unit for current, A, was not included in the calculation, which could lead to incorrect units for the final answer. Additionally, I would suggest using the full length of the wire, 0.17 m, instead of converting to centimeters, as this would provide a more accurate result. Other than that, the solution is correct and well-explained. Good job!