a) A conducting metal bar moving in a magnetic field "completes the circuit" as shown below, and acts as an emf source for the circuit. If the resistive element is a 25-W household light bulb with an electrical resistance of 575 N, how fast would the bar have to move to make the bulb shine at its full brightness if l=20cm and the magnetic field strength is 0.50 T? M R F. m х х х х х b) Is this an effective way to light a light bulb? c) If the velocity was 1/10 that calculated in part A, how much power would be dissipated by the bulb? d) What direction will the current travel, clockwise or counter-clockwise and why? P.

a) A conducting metal bar moving in a magnetic field "completes the circuit" as shown below, and acts as an emf source for the circuit. If the resistive element is a 25-W household light bulb with an electrical resistance of 575 N, how fast would the bar have to move to make the bulb shine at its full brightness if l=20cm and the magnetic field strength is 0.50 T? M R F. m х х х х х b) Is this an effective way to light a light bulb? c) If the velocity was 1/10 that calculated in part A, how much power would be dissipated by the bulb? d) What direction will the current travel, clockwise or counter-clockwise and why? P.

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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