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25 Dec 2020

The total inductance of two coils A and B when connected in series is 0.5H or 0.2H, depending on the relative directions of the current in the coils. Coil A when isolated from coil B, has a self inductance of 0.2H. The mutual inductance between the two coils is__

 

Booster class
Electricity and Magnetism
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Solving problems based on inductance
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Uttam Saikia
Uttam SaikiaLv10
25 Dec 2020
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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

Two coils A and B each having 1200 turns are placed near each other. When coil B is open circuited and coil A carries a current of 5A, the flux produced by coil A is 0.2Wb and 30% of this flux links with all the turns of coil B. The voltage induced in coil B on open-circuit when the current in the coil A is changing at a rate of 2 A/s is_

 

The magnitude of the induced emf in a coil is 6.0 V at theinstant when the current in the coil is 2.0 A and increasing at aconstant rate of 3.0 A/s. What is the self-inductance of thecoil?

(Please provide all formulas and/or concepts used)

The drawing shows a top view oftwo circular coils of conducting wire lying on a flat surface. Thecenters of the coils coincide. In the larger coil there are aswitch and a battery. The smaller coil contains no switch and nobattery. Describe the induced current that appears in the smallercoil when the switch in the larger coil is closed.

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It flows counterclockwise forever after the switch is closed.

(b)
It flows clockwise forever after the switch is closed.

(c)
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(d)
It flows clockwise, but only for a short period just after theswitch is closed.

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