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The quantity  in Ampere's law is called magnetic circulation. Figures 30.10 and 30.13 slum paths around which the magnetic circulation is evaluated. Each of these paths encloses an area. What is the magnetic flux through each area? Explain your answer. 

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Manoj Pandey
Manoj PandeyLv10
4 Mar 2021

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Related textbook solutions

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

Related questions

A 320 turn solenoid with a length of 19.0 cm and a radius of 1.60cm carries a current of 1.90 A. A second coil of four turns iswrapped tightly around this solenoid, so it can be considered tohave the same radius as the solenoid. The current in the 320 turnsolenoid increases steadily to 5.00 A in 0.900 s.
(a) Use Ampere's law to calculate the initial magnetic field in themiddle of the 320 turn solenoid.
T

(b) Calculate the magnetic field of the 320 turn solenoid after0.900 s.
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(c) Calculate the area of the 4-turn coil.
m2

(d) Calculate the change in the magnetic flux through the 4-turncoil during the same period.
Wb

(e) Calculate the average induced emf in the 4-turn coil.
V

Is it equal to the instantaneous induced emf? Explain.


(f) Why could contributions to the magnetic field by the current inthe 4-turn coil be neglected in this calculation?


Magnetic Flux and Induced EMF:

A coil has N turns enclosing an area of A. In a physics laboratory experiment, the coil is rotated during the time interval Δt from a position in which the plane of each turn is perpendicular to Earth's magnetic field to one in which the plane of each turn is parallel to the field. The magnitude of Earth's magnetic field at the lab location is B.

Part A- What is the magnitude Φ initial of the magnetic flux through the coil before it is rotated?

Part B- What is the magnitude Φ final of the magnetic flux through the coil after it is rotated? 

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