# Thread: physics prob

1. ## physics prob

38. The strength of a magnetic field is called magnetic iduction. An equation for magnetic induction is B= F/IL sin theta, where F is a force on a current I which is moving through a wire of length L at an angle theta to the magnetic field. A wire within a magnetic field is 1 meter long and carries a current of 5.04 N/Am. What is the angle of the wire to the magnetic field?[/COLOR]

2. Originally Posted by mathAna1ys!5
38. The strength of a magnetic field is called magnetic iduction. An equation for magnetic induction is B= F/IL sin theta, where F is a force on a current I which is moving through a wire of length L at an angle theta to the magnetic field. A wire within a magnetic field is 1 meter long and carries a current of 5.04 N/Am. What is the angle of the wire to the magnetic field?[/COLOR]
1. You need to employ brackets to make your equations unambiguous.
I guess you mean:

$\displaystyle B=F/(I.L.\sin(\theta))$

2. You give insufficient data to allow the determination of $\displaystyle \theta$.
Even if we assume that when you say the current is $\displaystyle 5.04 N/Am$
(the units seem to be Newtons/Amp !?) you actually mean $\displaystyle F/I$ is
$\displaystyle 5.04 N/Am$.

RonL