A circular coil of wire of 200 turns and diameter 2.0 cm carries a current of 4.0 A. It is placed in a magnetic field of 0.70 T with the plane of the coil making an angle of 30° with the magnetic field. What is the magnetic torque on the coil?
A) 0.15 N ? m
B) 0.088 N ? m
C) 0.29 N ? m
D) 0.40 N ? m
E) 0.076 N ? m
A
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Answer the following statement true (T) or false (F)
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The change in momentum of an object is equal to the
A) force acting on it. B) change in its velocity. C) object's mass times the force acting on it. D) impulse that acts on it. E) all of the above