Question

i)The drawing shows two situations in which charges are placed on the x and y axes. They are all located at the same distance of 4.80 cm from the origin O. For each of the situations in the drawing, determine the magnitude of the net electric field at the origin.

(a) E =

(b) E =

-5.0 μ. +1.0 μC - +2.0μό -3.0 με +4.0 με -1.0 με - +6.0 με (b)

ii) An electromagnetic wave in a vacuum has a magnetic field with a magnitude of 1.45 × 10-6 T. What is the intensity S of the wave? (This answer is not in W/M^3-- A lot of people have incorrect ways of solving this one so I'd really appreciate the help!)

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Answer #1

is (a) Electric field at o due to + 2 uc 374-80x1024 2x106 =9x10x 2x 10-6 due to 9x108x - 5.0 MC upward - 7.8125x10 NIC (4.80Net electric field ato - 56258707701390825X10)[2343758/07 0.390625x16 2.76X107 N/C (5) B= 1645x1067 Intensity of electromagn

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