A resistor R is connected between two parallel conducting rails separated by 30 cm, as shown in the diagram. A conducting bar maintains electric contact with the rails as it moves relative to them with constant velocity from x = 20 cm to x = 48 cm in 0.6 seconds. A uniform 0.8 T field points into the page. Calculate the induced electric potential difference between the two ends of the bar

A resistor R is connected between two parallel conducting rails separated by 30 cm, as shown in the diagram. A conducting bar maintains electric contact with the rails as it moves relative to them with constant velocity from x = 20 cm to x = 48 cm in 0.6 seconds. A uniform 0.8 T field points into the page. Calculate the induced electric potential difference between the two ends of the bar

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter22: Magnetism

Section: Chapter Questions

Problem 24PE: (a) What is the speed of a supersonic aircraft with a 17.0-m wingspan, if it experiences a 1.60V...

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(a) What is the speed of a supersonic aircraft with a 17.0-m wingspan, if it experiences a 1.60V Hall voltage between its wing lips when in level flight over the north magnetic pole, where the Earth's field strength is 8.00105T ? (b) Explain why very little current flows as a result of this Hall voltage.
Q4: Show detailed work and pay attention to the units. There are two different ways to calculate the potential difference across the bar, using the motional EMF expression or Faraday's Law. Show that both methods give the same answer. Use the right hand rule to figure out which end of the bar (A or B) will be at a higher potential due to the motion of the conductor in the field.
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