X X XSKXXXX XXXXXXX X XXX SKXXXX XXXXXXXX Two conductive rails are parallel to e
ID: 1875169 • Letter: X
Question
X X XSKXXXX XXXXXXX X XXX SKXXXX XXXXXXXX Two conductive rails are parallel to each other and placed perpendicularly across a magnetic field of 25 T oriented into the plane of the page. The rails are 0.13 m apart and connected to each other at one end through a 95 resistor. A conductive cylinder is laid across the rails 0.05 m from the resistor making a conductive rectangle. What is the magnetic flux through this rectangle? T m2 Select an answer An external force moves the cylinder at a constant velocity of 16 m/s to the right. What is the magnitude of the emf induced? What is the current in the wire? A Select an answer What is the rate of heat generation in the resistor? What is the magnitude of the external force needed to keep the cylinder moving at this constant velocity?Explanation / Answer
Magnetic flux=B*area=25*0.05*0.13=0.1625
Emf =Bv*l=52 volts
Current=52/95=0.55 A
Power=I^2*R=28.5 W
External force=ilB=1.8N
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