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WAEC - Physics (1993 - No. 35)
In a series R - C circuit, the resistance of the resistor is 4 Ω and capacitive reactance is 3 Ω. Calculate the impedance of the circuit
1Ω
4Ω
5Ω
7Ω
12Ω
Explanation
Z =
√
R
2
+ x
2
Z =
√
4
2
+ 3
2
= 5Ω
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