A toroid is made of 2000 turns of wire of radius 2.00 cm formed into a donut shape of inner radius 10.0 cm and outer radius 14.0 cm.When a 30.0-A current is present in the toroid, the magnetic field at a distance of 11.0 cm from the centre of the toroid is:
A)0.0857 T.
B)0.109 T.
C)0.120 T.
D)0.600 T.
E)0.685 T.

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The Answer of A toroid is made of 2000 turns of wire of radius 2.00 cm formed into a donut shape of inner radius 10.0 cm and outer radius 14.0 cm.When a 30.0-A current is present in the toroid, the magnetic field at a distance of 11.0 cm from the centre of the toroid is:
A)0.0857 T.
B)0.109 T.
C)0.120 T.
D)0.600 T.
E)0.685 T.

A Toroid Is Made of 2000 Turns of Wire of Radius