30. Induction and Inductance
Magnetic Flux
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- Multiple Choice
A ring of radius 0.5m lies in the xy-plane. If a magnetic field of magnitude 2 T points at an angle of 22° above the x-axis, what is the magnetic flux through the ring?
962views25rank7comments - Multiple ChoiceA square conducting loop with sides equal to lies such that the plane of the loop is perpendicular to a magnetic field. What is the flux through the loop?555views
- Textbook QuestionIn a physics laboratory experiment, a coil with 200 turns enclosing an area of 12 cm^2 is rotated in 0.040 s from a position where its plane is perpendicular to the earth's magnetic field to a position where its plane is parallel to the field. The earth's magnetic field at the lab location is 6.0*10-5 T. (a) What is the total magnetic flux through the coil before it is rotated? After it is rotated?734views
- Textbook Question
(II) A 16-cm-diameter circular loop of wire is placed in a 0.65-T magnetic field. (a) When the plane of the loop is perpendicular to the field lines, what is the magnetic flux through the loop? (b) The plane of the loop is rotated until it makes a 35° angle with the field lines. What is the angle θ in Eq. 29–1a for this situation? (c) What is the magnetic flux through the loop at this angle?
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Apply Faraday’s law, in the form of Eq. 29–8, to show that the static electric field between the plates of a parallel-plate capacitor cannot drop abruptly to zero at the edges, but must, in fact, fringe. Use the path shown dashed in Fig. 29–61. [Hint: Assume the contrary: that there is no fringing. Show that this assumption leads to a contradiction.]
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