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Lyrx [107]
3 years ago
6

Two coils of wire are placed close together. Initially, a current of 1.80 A exists in one of the coils, but there is no current

in the other. The current is then switched off in a time of 4.02 x 10-2 s. During this time, the average emf induced in the other coil is 4.38 V. What is the mutual inductance of the two-coil system?

Physics
2 answers:
sattari [20]3 years ago
8 0

Answer: the mutual inductance is - 0.0978H

Explanation:

Detailed explanation and calculation is shown in the image below

STatiana [176]3 years ago
6 0

Answer:

M = 0.1H

Explanation:

Please see attachment below.

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A portion of Nichrome wire of radius 2.50 mm is to be used in winding a heating coil. If the coil must draw a current of 9.25 A
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The resistance of the coil is 12. 97 Ω

<h3>How to determine the length</h3>

The formula for resistance is given as;

R = V/I

Note that resistance, R is measured in Ohms and represented with the symbol ( Ω)

Where;

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Learn more about resistance here:

brainly.com/question/17563681

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