In a typical speaker, a stiff cone made of plastic or paper pushes air back-and-forth creating pressure waves that we perceive as sound. The force to drive the cone comes from a coil of wire attached to the base of the cone, which, when current passes through it, experiences a magnetic force. The coil of wire is situated between a concentric magnet as shown below, whose field points N to S radially outward everywhere with a field strength is 0.2 T. The coil of wire has a diameter of 5 cm and is composed of 40 turns of wire with a total resistance of 4 2. What is the magnitude of the instantaneous force on the cone in N if a 6 V potential is applied across the ends of the coil of wire? Give your answer to 2 significant digits. S wire coil

In a typical speaker, a stiff cone made of plastic or paper pushes air back-and-forth creating pressure waves that we perceive as sound. The force to drive the cone comes from a coil of wire attached to the base of the cone, which, when current passes through it, experiences a magnetic force. The coil of wire is situated between a concentric magnet as shown below, whose field points N to S radially outward everywhere with a field strength is 0.2 T. The coil of wire has a diameter of 5 cm and is composed of 40 turns of wire with a total resistance of 4 2. What is the magnitude of the instantaneous force on the cone in N if a 6 V potential is applied across the ends of the coil of wire? Give your answer to 2 significant digits. S wire coil

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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