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4. A very long, thin rod carries electric charge with the linear density 30.0 nC/m. It lies along the x axis and
moves in the x direction at a speed of 1.50 x 107 m/s.
(a) Find the electric field the rod creates at the point (x = 0.00 cm, y
(b) Find the magnetic field it creates at the same point.
(c) Find the force exerted on an electron at this point, moving with a velocity of 2.40 x 10°î m/s.
22.0 cm, z =
0.00 cm)

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