RL Circuits

The impedance of a series circuit when R = 15 k and X_L = 10 k is approximately equal to ________.

A 5 k

B 6 k

C 18 k

D 25 k

ANS:C - 18 k

impedance = sqrtof(r^2+xl^2) ie sqrt(225+100) i.e 18kohm

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