The characteristic impedance of the transmission line if the outer diameter and inner diameter of the transmission line is 20 mm and 10 mm respectively, given the intrinsic impedance of the medium is 377 ‚âà√≠¬¨¬©, then the characteristic impedance of the transmission line is:$

The characteristic impedance of the transmission line if the outer dia

1.	The characteristic impedance of the transmission line if the outer diameter and inner diameter of the transmission line is 20 mm and 10 mm respectively, given the intrinsic impedance of the medium is 377 ‚âà√≠¬¨¬©, then the characteristic impedance of the transmission line is:$
A.	41.58 ‚âà√≠¬¨¬©
B.	50 ‚âà√≠¬¨¬©
C.	377 ‚âà√≠¬¨¬©
D.	None of the mentioned
Answer» B. 50 ‚âà√≠¬¨¬©

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The characteristic impedance of the transmission line if the outer diameter and inner diameter of the transmission line is 20 mm and 10 mm respectively, given the intrinsic impedance of the medium is 377 ‚âà√≠¬¨¬©, then the characteristic impedance of the transmission line is:$

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