A rectangular loop of length 
and width 
, carrying a steady current 
of 
is hinged along the 
-axis, and is situated in a uniform magnetic field 
of 
parallel to the 
-axis.
If the plane of the loop makes an angle of 
with the – plane,
(a) calculate the force exerted by the magnetic field on each side of the loop, and
(b) calculate the torque required to hold the loop in this position.
Roughwork.
Force on a current-carrying conductor in a magnetic field is in magnitude
its direction to be determined by Fleming’s left hand rule.
(a) Have in mind a picture as viewing cross-sectionally:
and as down the top:
where
(b) This part is not to be attempted.