Answered: A 155-turn flat coil of wire, 32.5 cm…

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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A 155-turn flat coil of wire, 32.5 cm in diameter, is acting as an antenna for FM radio at a frequency of 120 MHz. The propagation direction of the radio wave is parallel to the plane of the coil. The magnetic field oscillates perpendicularly to that plane and has a maximum strength of 0.95 × 10^-12 T.

a) What is the intensity of the radio wave, in watts per square meter?

b) Find the average emf, in volts, that is induced in the coil during the quarter cycle as the magnetic varies in strength from zero to maximum.

c) If the radio receiver circuit contains an inductance of 2.6 μH, what capacitance, in farads, must it also contain for it to resonate at 120 MHz? Ignore damping.

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