Q18
A toroidal coil has N closely-wound turns. Assume the current through the coil to be l and the toroid is filled with a magnetic material of relative permittivity _r. The magnitude of magnetic induction B inside the toroid, at a radial distance r from the axis, is given by
A toroidal coil has N closely-wound turns. Assume the current through the coil to be and the toroid is filled with a magnetic material of relative permittivity The magnitude of magnetic induction inside the toroid, at a radial distance r from the axis, is given by
A.
B.
C.
Answer
D.
Answer: Option C
Solution
Answer: Option C
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