In the figure below, an iron bar sitting on two parallel copper rails, connected to each other by a resistor, is pulled to the right with a constant force of magnitude Fapp = 1.45 N. The friction between the bar and rails is negligible. The resistance R = 8.000, the bar is moving at a constant speed of 1.65 m/s, the distance between the rails is e, and a uniform magnetic field B is directed into the page. E (a) What is the current through the resistor (in A)? www (b) If the magnitude of the magnetic field is 2.90 T, what is the length (in m)? (c) What is the rate at which energy is delivered to the resistor (in W)? ( (d) What is the mechanical power delivered by the applied constant force (in W)?

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In the figure below, an iron bar sitting on two parallel copper rails, connected to each other by a resistor, is pulled to the right with a constant
force of magnitude Fapp = 1.45 N. The friction between the bar and rails is negligible. The resistance R = 8.00 02, the bar is moving at a
constant speed of 1.65 m/s, the distance between the rails is , and a uniform magnetic field B is directed into the page.
JE
(a) What is the current through the resistor (in A)?
(b) If the magnitude of the magnetic field is 2.90 T, what is the length (in m)?
(c) What is the rate at which energy is delivered to the resistor (in W)?
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(d) What is the mechanical power delivered by the applied constant force (in W)?
Transcribed Image Text:In the figure below, an iron bar sitting on two parallel copper rails, connected to each other by a resistor, is pulled to the right with a constant force of magnitude Fapp = 1.45 N. The friction between the bar and rails is negligible. The resistance R = 8.00 02, the bar is moving at a constant speed of 1.65 m/s, the distance between the rails is , and a uniform magnetic field B is directed into the page. JE (a) What is the current through the resistor (in A)? (b) If the magnitude of the magnetic field is 2.90 T, what is the length (in m)? (c) What is the rate at which energy is delivered to the resistor (in W)? ( (d) What is the mechanical power delivered by the applied constant force (in W)?
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