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Question: oscillating charges produce electromagnetic radiation the most common antenna is...

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Oscillating charges produce electromagnetic radiation. The most common antenna is the dipole antenna. Here you will derive the static dipole field at a particular point in space. (a) (8 pt) Find the electric field (magnitude.+q and direction) at point P due to the charges in the figure. Assume free space. d/2 (b) (5 pt) Simplify the expression for the .P case of r »d and write your expression d in terms of the magnitude of the electric dipole moment p-gd (c) (2 pt) Assume the dipole is in a material with a relative permittivity ε> 1 . Is the magnitude of the field at point P larger or smaller than in (b)? Why?

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