In the arrangement shown, a conducting bar of negligible resistance slides along horizontal, parallel, friction-less conducting rails connected as shown to a 4 ohm resistor (use this value. Ignore the 2.0 ohm mentioned in the figure for the resistance). A uniform 1.8-T magnetic field is perpendicular to the plane of the paper. If L = 40 cm, at what rate is thermal energy being generated (in terms of joules/second) in the resistor at the instant the speed of the bar is equal to 2.7 m/s?
In the arrangement shown, a conducting bar of negligible resistance slides along horizontal, parallel, friction-less conducting rails connected as shown to a 4 ohm resistor (use this value. Ignore the 2.0 ohm mentioned in the figure for the resistance). A uniform 1.8-T magnetic field is perpendicular to the plane of the paper. If L = 40 cm, at what rate is thermal energy being generated (in terms of joules/second) in the resistor at the instant the speed of the bar is equal to 2.7 m/s?
Chapter13: Electromagnetic Induction
Section: Chapter Questions
Problem 41P: In the circuit sho in the accompanying figure, the rtd slides along the conducting rails at a...
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![Question 4
In the arrangement shown, a conducting bar of negligible resistance slides along horizontal, parallel,
friction-less conducting rails connected as shown to a 4 ohm resistor (use this value. Ignore the 2.0
ohm mentioned in the figure for the resistance). A uniform 1.8-T magnetic field is perpendicular to
the plane of the paper. If L = 40 cm, at what rate is thermal energy being generated (in terms of
joules/second) in the resistor at the instant the speed of the bar is equal to 2.7 m/s?
2002
Question 5
At what frequency should a 225-turn, flat coil of cross sectional area of 253 cm² be rotated in a
uniform 35-mT magnetic field to have a maximum value of the induced emf equal to 6 V? Write
your answer in hertz.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcf5086cc-da2a-42e9-9f4e-07e28b2e7df5%2F604de8eb-b44c-4bb0-8907-5e588068437f%2F1hdsfa_processed.png&w=3840&q=75)
Transcribed Image Text:Question 4
In the arrangement shown, a conducting bar of negligible resistance slides along horizontal, parallel,
friction-less conducting rails connected as shown to a 4 ohm resistor (use this value. Ignore the 2.0
ohm mentioned in the figure for the resistance). A uniform 1.8-T magnetic field is perpendicular to
the plane of the paper. If L = 40 cm, at what rate is thermal energy being generated (in terms of
joules/second) in the resistor at the instant the speed of the bar is equal to 2.7 m/s?
2002
Question 5
At what frequency should a 225-turn, flat coil of cross sectional area of 253 cm² be rotated in a
uniform 35-mT magnetic field to have a maximum value of the induced emf equal to 6 V? Write
your answer in hertz.
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