(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Problem 27.7

A stiff wire 52.0 cm long is bent at a right angle in the middle. One section lies along the z axis and the other is along the line y=2x in the plane. A current of 20.5 A flows in the wire-down the z axis and out the line in the xy plane. The wire passes through a uniform magnetic field given by B=(0.318i)T .

(a) : Determine the magnitude and direction of the total force on the wire.

(b) : Find the ange theta = ,,,,,, below the negative y-axis

2. Relevant equations

F = I l B sin(theta)

F = I lxB

3. The attempt at a solution

Length L = 35(2) *(-k) +35(2) cos 65 i + 35(2) sin 65 j

= 29.58 i + 63.44 j - 70 k

magnetic field B = 0.318 i

current i = 20.5 A

force F = i ( L X B )

but there is some thing wrong !!

i don't know wher ,, maybe with the angle theta !!

Please help and thanks for trying to help me .

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Determine the magnitude and direction of the total force on the wire.

**Physics Forums | Science Articles, Homework Help, Discussion**