1.

A resistance, an inductance and a capacitance are connected in series. The values of R, XL and XC are 20 Ω, 30 Ω and 10 Ω respectively. The net reactance of the circuit is:

A. 20 Ω
B. 10 Ω
C. 78.28 Ω
D. zero
Answer» B. 10 Ω


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