In the figure below, a region with a constant magnetic field equal to 0.30 T out

Question

In the figure below, a region with a constant magnetic field equal to 0.30 T out of the page is shown. A single turn, rectangular loop of wire moves into this region with a speed of 17.3 m/s. The dimensions of the loop are a = 0.71 m and b = 0.45 m. The loop has a resistance of 2.73 ohm. While the loop is moving into the region of constant magnetic field, the direction of the induced magnetic field in the loop is: Tries 0/20 While the loop is moving into the region of constant magnetic field, the magnitude of the induced EMF is Tries 0/3 While the loop is moving into the region of constant magnetic field, the magnitude of the magnetic force acting on the loop is Tries 0/20 While the loop is moving into the region of constant magnetic field, the direction of the magnetic force acting on the loop is: Tries 0/3

Explanation / Answer

(1)

into the page ( by using right hand rule)

(2)

the magnitude of induced emf is

e= B L v = 0.3 ( 0.71 )( 17.3 ) = 3.6849 V

(3)

F = BIL = B ( V/R) L = 0.3 ( 3.6849/2.73) ( 0.71 )= 0.287 N

(4)

upwards ( by using right hand rule)

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