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Problems_3-12-10

# Problems_3-12-10 - Problem 1 A stationary electric charge q...

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Problem 1: A stationary electric charge q = 2.6 × 10 -8 C is placed in a laser beam whose intensity is 2.5 × 10 3 W/m 2 . Determine the magnitude of the (a) electric and (b) magnetic forces exerted on the charge If the charge is now moving perpendicular to magnetic forces exerted on the charge. If the charge is now moving perpendicular to the magnetic field with a speed of 3.7 × 10 4 m/s, find the magnitudes of the (c) electric and (d) magnetic forces exerted on it.

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Problem 2 – A tiny bulb is emitting light uniformly in all directions. At a distance of 2.5 m from the source, the electric field has a maximum value of 26.9 N/C. Assuming that the light does not reflect from anything in the environment Assuming that the light does not reflect from anything in the environment, calculate the average power of the light emitted by the source.