A partide with charge q = 1.1 C and a long wire carrying current I = 5 A is on the ry-plane at the moment the charge is at point P at distance d= 0.4 cm from the wire and has velocity v = 1.7 m/s in the z-direction. What is the magnitude of the magnetic force acting on the charge in units of nanonewtons? (4o = 4x x 10 T. m/A) Answer:
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