Find the magnetic field at P and P\' on the axis of a circular coil of radius a

Question

Find the magnetic field at P and P' on the axis of a circular coil of radius a = 20.3 cm (see figure below). The coil consists of 10 turns of wire carrying a current of 4.02 A in the direction indicated. (Hint: the magnetic field on the axis of a coil with N turns is N times the magnetic field from a single.)

magnitude at P direction at P ---Select---upwarddownward Find the magnetic field at P and P' on the axis of a circular coil of radius a = 20.3 cm (see figure below). The coil consists of 10 turns of wire carrying a current of 4.02 A in the direction indicated. (Hint: the magnetic field on the axis of a coil with N turns is N times the magnetic field from a single.)

Explanation / Answer

a)B=(0/4)*2NR2I/(z2+r2)3/2

=10-7*2*10*0.2032*4.02/(0.2032+0.32)1.5

=2.19*10-5T downwards

b) Same as (a)

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