Why is magnetic field maximum at the centre of a current carrying coil?
Answers
Answer:
The answer can be easily found out by the formula derived for the magnetic field on the axis of a circular coil which has a steady current i flowing through it.
Explanation:
The formula for Magnetic field on the axis of a circular coil is given as
B = ui r^2/2(x^2+r^2)^3/2
We can easily see that the magnetic field is an even function with respect to x for B and also, that it is continuously decreasing for increasing value of x where x is the distance on the axis of the coil from the centre of the coil.
And, hence the maximum value of field will be for x = 0 so that the denominator is minimum.
And, hence x = 0 implies that the field is maximum for centre of the circular coil.
Answer:
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Explanation:
"Magnetic field is maximum at the "center" of the current carrying circular loop. ... The "magnetic field" lines are due to the circular loop are normal ("perpendicular") to the "plane" of circular loop, and is in the "shape" of "concentric circles" almost on "every part" of the "periphery"of the conductor.