Can You Please Answer this Question Equal currents of magnitude I travel into th

Question

Can You Please Answer this Question

Equal currents of magnitude I travel into the page in wire M and out of the page in wire N. Eight directions are indicated by letters A through H. The direction of the magnetic field at point P is a. C. b. E. c. F. d. G. e. H. In the arrangement shown, a conducting bar of negligible resistance slides along horizontal, parallel, frictionless conducting rails connected as shown to a 2.0 Ohm resistor. A uniform 1.5-T magnetic field is perpendicular to the plane of the paper. If L = 60 cm, at what rate is thermal energy being generated in the resistor at the instant the speed of the bar is equal to 4.2 m/s?

Explanation / Answer

9. According to right hand rule, the direction of magnetic field will be towards left. That is A.

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