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Falling bar A conducting rod with a mass m and a length L can slide with no friction down a pair of vertical conducting rails,
Falling bar A conducting rod with a mass m and a length L can slide with no friction down a pair of vertical conducting rails, as shown in the figure below. The rails are joined at the bottom by a lightbulb of resistance R. The rails have stops near the bottom to prevent the rod from smashing the bulb. Thereis a uniform magnetic field of magnitude B directed out of the page. When the rod is released from rest, the force of gravity causes the rod to accelerate down the rails, but the rod eventually reaches a terminal velocity (that s, it falls at constant speed). Part (a) Homework . Unanswered . Due Mar 19th, 12:15 PM Choose all the correct statements about this situation from the list below. 1 Multiple answers: Multiple answers are accepted for this question Select one or more answers and submit. For keyboard navigation... SHOW MORE a The current is always directed clockwise around the loop while the rod is falling. b The current is always directed counterclockwise around the loop while the rod is falling. C There is no current once the rod reaches its terminal velocity. d There is a constant (non-zero) current once the rod reaches its terminal velocity. e The faster the rod moves the brighter the light bulb is. f The light bulb is brightest at the beginning and then gradually the bulb gets dimmer as the rod gets closer to its terminal velocity.@ Part (b) o Homework Unanswered Due Mar 19th, 12:15 PM Which graph best represents the shape of the graph of the magnitude of the induced current passing through the light bulb as a function of time while the rod is falling? . N Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. U e RN Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Graph 1 b Graph 2 C Graph 3 d Graph 4 e Graph 5 f Graph 6 g Graph 7 h Graph 8@ Part (c) o Homework Unanswered Due Mar 19th, 12:15 PM Use these numbers: the rod has a weight of mg =2.00 N and a length of L = 3.00 m. The resistance of the light bulb is R= 5.00 ohms, and the strength of the magnetic field is B = 0.550 T. Calculate the magnitude of the maximum current in this situation. A Type your numeric answer and submit I Unanswered e 5 attempts left @ Part (d) o Homework Unanswered Due Mar 19th, 12:15 PM Calculate the rod's terminal speed. m/s Type your numeric answer and submit 000000 @ Part (e) o Homework Unanswered Due Mar 19th, 12:15 PM Calculate the maximum power dissipated in the light bulb as the bar falls. w Type your numeric answer and submit - 000000000@0o@o@] Unanswered e 5 attempts left
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