In the following figure, a long, straight, current-carrying wire of linear mass density μ is suspended by threads. A magnetic field perpendicular to the wire exerts a horizontal force that deflects the wire to an equilibrium angle θ.
A) Find an expression for the strength and direction of the magnetic field B⃗ .
B= ???
B) What B⃗ deflects a 51 g/m wire to a 13 ∘ angle when the current is 9.0 A ?
B= ???
I know the field is down.
https://session.masteringphysics.com/problemAsset/…
Forgot the Imagie
1 Answer
-
A) ((mu)gsin(theta))/ cos(theta)I
B) 13 mT
[C) ] Down is correct
