A series circuit has R = 30 ohm, inductive reactance 50 ohm and capacitive reactance 10 ohm. What is the impedance?
Answer and explanation
Correct answer: A. 50 ohm
- Step 1: Z = sqrt(R squared + (XL - XC) squared).
- Step 2: Z = sqrt(900 + 1600) = 50 ohm.
Answer
50 ohm.
Why not the others: 90 ohm, 70 ohm and 2500 ohm do not fit.
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