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Physics, 04.04.2020 06:05 gebradshaw2005

Consider the apparatus shown below in which a conducting bar can be moved along two rails connected to a lightbulb. The whole system is immersed in a magnetic field of 0.320 T perpendicularly into the page. The vertical distance between the horizontal rails is 0.800 m. The resistance of the lightbulb is 41.4 O, assumed to be constant. The bar and rails have negligible resistance. The bar is moved toward the right by a constant force of magnitude 0.600 N.(a) What is the direction of the induced current in the circuit?(b) If the speed of the bar is 15.4 m/s at a particular instant, what is the value of the induced current?Find the value of this maximum speed. We have assumed the resistance of the lightbulb is constant. In reality, as the power delivered to the lightbulb increases, the filament temperature increases and the resistance increases. Explain conceptually (not algebraically) whether the terminal speed found in part (d) changes if the resistance increases. If the terminal speed changes, does it increase or decrease?

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