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Navneet
- 15 Jul
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The skin depth in a good conductor is 4um at a frequency of 200kHz , calculate the velocity of EM wave in free space?
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Practice Mock Test
gate electronics and communication
First differentiate it w.r.t to x and equate it to zero to find point of max or min .then double differentiate it w.r.t x and put the value of x found in first derivative if the value is -ve the function is max at that point