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The resultant electric field of two components in the x and y direction having amplitudes 6 and 8 respectively is

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in Electromagnetic Theory by (188k points)
The resultant electric field of two components in the x and y direction having amplitudes 6 and 8 respectively is

(a) 100

(b) 36

(c) 64

(d) 10

This question was posed to me in an internship interview.

The question is from Skin Effect topic in portion Transmission Lines of Electromagnetic Theory

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Right answer is (d) 10

Explanation: The resultant electric field of two components is given by E = √(Ex^2 + Ey^2). For the given data, the electric field will be E = √(6^2+8^2) = 10 units.

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