# Compound alternating current circuits

### Explanation of question 13

A series circuit has a resistance of 10 , an inductive reactance of 30 and capacitive reactance of 6, when connected to a fixed frequency supply. The impedance of the circuit is

1. 10
2. 14
3. 26
4. 34

The answer is :- 3

Z2 = 102 + 242 = 100 + 576 = 676

Z = 26

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