For an ideal toroid, in which turns are closely spaced, the external magnetic field is

Very high

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Infinity

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Zero

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One

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Solution

The correct option is D Zero
The external magnetic field is zero, because the net current passing through any circular path lying outside the toroid is zero.

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Similar questions

Q. Show that in an ideal toroid the magnetic field outside the toroid at any point in the open space is zero.

Q. (a) Using Biot-Savart's law, derive the expression for the magnetic field in the vector form at a point on the axis of a circular current loop
(b) What does a toroid consist of? Find out the expression for the magnetic field inside a toroid for N turns of the coil having the average radius r and carrying a current I. Show that the magnetic field in the open space inside and exterior to the toroid is zero.

Q. (a) Using Biot-Savart's law, derive the expression for the magnetic field in the vector form at a point on the axis of a circular current loop.
(b) What does a toroid consist of ? Find out the expression for the magnetic field inside a toroid for N turns of the coil having the average radius r and carrying a current I. Show that the magnetic field in the open space inside and exterior to the toroid is zero.

Q. Show that in an ideal toroid the magnetic field inside the toroid.

A toroid has a core (non-ferromagnetic) of inner radius 25 cm and outer radius 26 cm, around which 3500 turns of a wire are wound. If the current in the wire is 11 A, what is the magnetic field (a) outside the toroid, (b) inside the core of the toroid, and (c) in the empty space surrounded by the toroid.

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For an ideal toroid, in which turns are closely spaced, the external magnetic field is

The correct option is D ZeroThe external magnetic field is zero, because the net current passing through any circular path lying outside the toroid is zero.

The correct option is D Zero
The external magnetic field is zero, because the net current passing through any circular path lying outside the toroid is zero.