mat-sln-asn-lenzquiz - Solution for Lab Quiz 22 RL Circuits...

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Unformatted text preview: Solution for Lab Quiz 22 RL Circuits Solution to Lab Quiz Problem 22.1(Effect of a Loop on Another Loop) Problem: Loops 1 and 2 are parallel. Immediately after the switch is closed, what happens to loop 2 ? Select One of the Following: (a) Loop 2 is not affected by loop 1 . (b) Loop 2 is attracted to loop 1 . (c-Answer) Loop 2 is re- pelled by loop 1 . (d) Loop 2 is forced up- ward. (e) Loop 2 is forced down- ward. 1 2 Solution (a) Immediately after the switch is closed, the current in loop 1 is increasing since the loop has some inductance. (b) The increasing current in loop 1 results in an increasing magnetic field due to the loop. 1 (c) As the magnetic field due to loop 1 increases, the magnetic flux through loop 2 also increases. (d) According to Lenzs law, the current induced in loop 2 will be such as to oppose the change in magnetic flux through the loop. Because the magnetic flux through loop 2 is increasing, the current induced in loop 2 will have a magnetic field opposite the field due to loop...
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mat-sln-asn-lenzquiz - Solution for Lab Quiz 22 RL Circuits...

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