1.

An RLC series circuit has R = 30 Ω, XL = 30 Ω and XC = 30 W. Its impedance is

A. 30 ∠0°.
B. 30 ∠45°
C. 42.42 ∠45°
D. 90 ∠45°.
Answer» B. 30 ‚à†45¬∞


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