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Home Q & A Board Science-Related Homework Help Physics
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ang1 ang1
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10 years ago
A conducting rod with a length of 25 cm is placed on a U-shaped metal wire that has a resistance R of 8.0 Ω as shown in the figure. The wire and the rod are placed in the plane of the paper. A constant magnetic field of strength 0.40 T is applied perpendicular into the paper. An applied force moves the rod to the right with a constant speed of 6.0 m/s. What is the magnitude and direction of the induced current in the wire?

17 mA clockwise
75 mA clockwise
75 mA counterclockwise
17 mA counterclockwise
52 mA clockwise
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#1
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10 years ago
emf = BLv

=0.4*0.25*6

=0.6 V

now current=V/R

=0.6/8

=0.075 A

the direction is anti clockwise
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