A square loop, with area 0.04 m, is in a uniform magnetic field. The magnetic field lines are perpendicular to the square loop. You squeeze the loop and reduce its area at a rate of 0.1 m²/s. a) If the induced emf is 22 mV what is the value of the magnetic field? B) If instead you kept the area of the loop constant, and did not squeeze it, at what rate would the magnetic field's magnitude have to change to induce the same 22 mV emf?

A square loop, with area 0.04 m, is in a uniform magnetic field. The magnetic field lines are perpendicular to the square loop. You squeeze the loop and reduce its area at a rate of 0.1 m²/s. a) If the induced emf is 22 mV what is the value of the magnetic field? B) If instead you kept the area of the loop constant, and did not squeeze it, at what rate would the magnetic field's magnitude have to change to induce the same 22 mV emf?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

A square loop, with area 0.04 m? , is in a uniform magnetic field. The magnetic field lines are
perpendicular to the square loop. You squeeze the loop and reduce its area at a rate of 0.1 m?/s. a) If the
induced emf is 22 mV what is the value of the magnetic field? B) If instead you kept the area of the loop
constant, and did not squeeze it, at what rate would the magnetic field's magnitude have to change to
induce the same 22 mV emf?

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