Question

A certain inductor is formed from a circular coil consisting of 10 turns of wire. When...

A certain inductor is formed from a circular coil consisting of 10 turns of wire. When a current of 2.5 A is sent through this coil, it experiences a total magnetic flux of 5 * 10^-7 Wb.

a) What is the inductance of this coil?

b) What magnetic energy does this inductor contain at this current?

c) What is the magnitude of the self-induced EMF in the coil if current is reduced to 0 over 0.05 secs?

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Answer #1

a) Otor 5x10-7Wb 2.5A 2 Notor > 10x 5x10 7 5x10 6 kb 6 L- NI 5x10 2.5 L- 2x10-6H 2 UH b) E = V2L12 - 2x 1/x ax 10 x 2.82 6.25

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