Microphones are used to convert sound vibrations to electrical signals. In one kind of microphone, sound waves move a coil of wire up and down in a magnetic field, as shown in (Figure 1). The coil shown has a diameter of 1.2 cm and has 100 turns; the 0.010 T magnetic field points radially out from the north pole to the south. Figure S Wire coil 1 of 1 > Part A If the microphone's emf at some instant is 20 mV, what is the speed of the coil? Express your answer with the appropriate units. V= Value Submit μA Provide Feedback Request Answer Units ?

Microphones are used to convert sound vibrations to electrical signals. In one kind of microphone, sound waves move a coil of wire up and down in a magnetic field, as shown in (Figure 1). The coil shown has a diameter of 1.2 cm and has 100 turns; the 0.010 T magnetic field points radially out from the north pole to the south. Figure S Wire coil 1 of 1 > Part A If the microphone's emf at some instant is 20 mV, what is the speed of the coil? Express your answer with the appropriate units. V= Value Submit μA Provide Feedback Request Answer Units ?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter13: Electromagnetic Induction

Section: Chapter Questions

Problem 13.9CYU: Check Your Understanding A long solenoid of cross-section area 5.0 cm2is wound with 25 turns of wire...

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