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ECE · Q283

Electromagnetic Field Theory

Engineering and GATE · ECE · question 283

Q283

A steel pipe is constructed of a material for which µr = 200 and σ = 5 × 106 mho/m. The outer and inner radii are 8 and 6 mm respectively and the length is 80 m. If the total current carried by the pipe is 2cos104πt A,Then the skin depth will be

A.
0.225 × 10-3 m
Answer
B.
0.300 × 10-3 m
C.
0.352 × 10-3 m
D.
0.125 × 10-3 m

Answer: Option A

Solution

Answer: Option A
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