A single circular loop of radius 0.22m carries a current of 2.6A in a magnetic field of 0.95T .
Part A
What is the maximum torque exerted on this loop?
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A single circular loop of radius 0.22m carries a current of 2.5A
in a magnetic field of 0.94T.
What is the maximum torque exerted on this loop?
Answer
the torque on a current carrying wire in a magnetic field
is:
T= N I A B sin?
where N=number of loops (here N=1)
I = current, here 2.5 amp
A is the area of the loop=? r^2 where r=0.22m
B=mag field strength, =0.94T
?= angle between field and normal to loop; t
he max torque occurs when ?=90 such that sin ? =1,
T=NIAB =1*2.5*?*0.222*0.94 =0.357N
1st the force(F)=NBIL where N is number of loops N=1 since there
is single loop,B is magnetic field, I is current in the wire and L
is the radius
but Torque(T) =F*L
T= BIL*L
T = 0.95*2.6*0.22*0.22
T = 0.119548Nm
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