Question

13) Ampere’s Law – Solenoid: (12 pts) A coil of wire is wrapped into a solenoid of length l = 1 m and has N = 15 loops with a current of 1 A passing through it.

13) Ampere's Law - Solenoid: (12 pts) A coil of wire is wrapped into a solenoid of length 1 = 1 m and has N = 15 loops with a current of 1 A passing through it. (a) Identify the current enclosed by an Amperian loop passing through the center of the solenoid as shown in the figure below. (b) is the magnetic field perfectly uniform inside this real solenoid? Explain. (C) is the magnetic field zero or non-zero outside of the solenoid? Explain.

Answer 1

N=15 I=14 b=1m from Amafese Law B =MONI il I enclosed & NI = 1541 = 15A = Penclosed magnetic fields inside the solenoid is uniform because magnitude remain Equal and direction of magnette field remain same at Euch point solenoid. Coil is sufficiently login for its inside then kield is uniform if we look at it for Enough. In the center of coil a multiplicity of wound Luyers maltas the field to make it Symmetrical abalt the anis. The field strength decreases with increasing in distance so there will be a gradient in plus density soy that reason but it is small.

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