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(c) Write Ampere’s law in integral form. Using this form find the volume current density J...

(c) Write Ampere’s law in integral form. Using this form find the volume current density J as a function of distance r from the axis of a radially symmetrical parallel stream of electrons in a wire if the magnetic field inside the stream varies as B(r) = µ0r 2 .Find the total current flowing in the wire with the radius r = R.

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