Question

An aluminum ring of radius r1 = 5.00 cm and a resistance of 4.35 X 104 12 is placed around one end of a long air-core solenoi

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Answer #1

A)

Current, I = E/R

E = 0.5 u0 n pi r2^2 (dI/dt)

E = 0.5 x 4 pi x 10^-7 x 1050 x pi x 0.03^2 x (270) = 5.04 x 10^-4 V

I = 5.04 x 10^-4/0.000435 = 1.16 A

B)

B = u0 I/2 r1

B = (4 pi x 10^-7 x 1.16)/(2 x 0.05) = 14.55 uT

C)

Left

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