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23 Nov 2019

An emf of 36mV is induced in a 400 turn coil at an instant when thecurrent has a value of 2.8A and is changing at a rate of 12 A/sWhat is the total magnetic flux through the coil?

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Jarrod Robel
Jarrod RobelLv2
24 Jul 2019

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Related textbook solutions

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

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The figure shows the magnetic flux through a single-loop coil as a function of time. 

(a). What is the induced emf in the coil at t=0.050s?

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A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.96 V and a current of 3.8 A are induced in the coil. The wire is the re-formed into a single-turn square coil, which is used in the same magnetic field (again perpendicular to the plane of the coil and with a magnitude changing at the same rate). What emf and current are induced in the square coil?

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 ∆t 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 at B. 

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

 

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

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