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A 200 ohm resistor is in series with a capacitor of reactance 212 ohm. Impedance?
A12 ohm
B412 ohm
C292 ohm
D206 ohm
Answer & Solution
Correct answer: C. 292 ohm
Resistance and reactance are 90 degrees apart, so Z = sqrt(200 squared + 212 squared), about 292 ohm.
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