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What is a toroid?...

What is a toroid?

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(a)Using Ampere's circuital law,obtain the expression for the magnetic field due to a long solenoid at a point inside the solenoid on its axis. (b)In what respect is a toroid different from a solenoid?Draw and compare the pattern of the magnetic field lines in the two cases. (c)How is the magnetic field inside a given solenoid made strong?

What is the shape of the coils for an ideal toroid?

Field inside a toroid is

If a bar magnet is moved inside a toroid, will there be any induced emf? Give Reason.

Obtain an expression for magnetic induction along the axis of toroid on the basis of Ampere's circuital law.

The space inside a toroid is filled with tungsten whose susceptibility is 6.8xx10^(-5) . The percentage increase in the magnetic field will be

What is the difference between solenoid and toroid?

The self inductance of a toroid is :-