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  1. The given circuit is a combination of—


    1. resistance of 2·4Ω in series with capacitive reactance 2·8Ω
    2. resistance of 2·4Ω in series with capacitive reactance 2·4Ω
    3. resistance of 2·8Ω in series with capacitive reactance 2·4Ω
    4. resistance of 2·4Ω in parallel with capacitive reactance 2·8Ω
Correct Option: A

The given circuit:

The impedance of the given circuit

Z =
30 + j50
=
30   0°
=
58·31   59°
I– 5 + j1515·81 – 108·43°

= 3·69 – 49·43° or Z = (2·4 – j 2·8)Ω
Therefore, the circuit has a resistance of 2·4Ω in series with capacitive reactance 2·8Ω.



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