阿摩線上測驗
22.A 5A current flows in a circular loop of radius 2cm. The axis of the loop is at 30°
to a uniform field 0.06T.
What is the magnitude of the torque on the loop?
(A)
(B) 
(C) 
(D)
(E) 
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統計： A(1), B(4), C(2), D(16), E(2) #2308257
統計： A(1), B(4), C(2), D(16), E(2) #2308257
