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RLC Circuits and Resonance

Q1:

What is the total impedance of a 60 Hz series RLC circuit when XL = 7.5 ohms, XC = 265.3 ohms, and R = 33 ohms?

A 257.8 ohms

B 259.9 ohms

C 290.8 ohms

D 1989.75 ohms

ANS:A - 257.8 ohms

Z= √(Rt^2+Xt^2).
Z=√{(33)^2+(-257.8)^2} [since.,Xt=Xl-Xc].
Z=√(67549.84),
Z=259.9.



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