A pair of point charges, q = +8.00 μC and q' = −5.00 μC, arc moving as shown in Fig. P28.55 with speeds ʋ = 9.00 × 104 m/s and ʋ' = 6.50 × 104 m/s. When the charges arc at the locations shown in the figure, what are the magnitude and direction of (a) the magnetic field produced at the origin and (b) the magnetic force that q' exerts on q?
Figure P28.55
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