Wednesday Homework Problem 10.9 The figure to the right shows two infinite (a pa

Question

Wednesday Homework Problem 10.9 The figure to the right shows two infinite (a parallel wires carrying currents I and 2I in the directions drawn. Select the figure that 21 has the forces drawn correctly to scale. All pairs of wires are ? the same dstance apart. 21 21 21 21 21 21 21 | 21 Select One of the Following (a) Figure (a) (b) Figure (b) (c) Figure (c) (d) Figure (d) (e) Figure (e) (f) Figure (f) (g) Figure (E) (h) Figure(h) 0) Figure(0) Wednesday Homework Problem 10.10 The figure to the right shows a rail gun composed of two fixed rails and a sliding rail (shown in grey) in an external uniform magnetic field. A battery is connected between points A and B as drawn. In what direction must the external magnetic field point so the projective fires out of the gun moving to the right of the page rail the (a) to the right of the page (b) to the left of the page (c) to the top of the page (d) to the bottom of the page (e) into the page (f) out of the page rail

Explanation / Answer

10.9 ) F = uI1I2 / (2*pi*d)

Force will be same on both the wires. And the force wi be repulsive because direction of current is in opposite direction.

Therefore option (e) is correct.

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