Microwave Communication

Assertion (A): For high frequency lines inductive reactance is very high as compared to ac resistance. Reason (R): Due to skin effect ac resistance of line is higher than dc resistance.

A Both A and R are correct and R is correct explanation of A

B Both A and R are correct but R is not correct explanation of A

C A is correct but R is wrong

D A is wrong but R is correct

ANS:B - Both A and R are correct but R is not correct explanation of A

X_L = ωL. As frequency increases line resistance increases slightly but X_L increases directly as per frequency.

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