(27-16) Find the direction of the force on a negative charge for each diagram shown in Fig. 27-42, w

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(27-16) Find the direction of the force on a negative charge for each diagram shown in Fig. 27-42, where v (green) is the velocity of the charge and B (blue) is the direction of the magnetic field. ( ⨂ means the vector points inward. ⨀ means it points outward, toward you.)
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In (a) you said the two negatives cancel out but the answer is still a negative. How?

YuvrajSingh-pykf