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BRANCH :- E & TC ENGINEERING

SEMESTER :- 3RD

SUBJECT :- CIRCUIT THEORY

CHAPTER :- 4 – RESONANCE & COUPLE CIRCUIT

TOPIC :- RESONANCE & COUPLE CIRCUITS

AY-2021-2022 (Winter-2021)

FACULTY :- Er. Biswajit Mandal(Sr. Lecturer Electrical Engg.)

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Presentation On:-

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SERIES & PARALLEL CIRCUIT

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SERIES CONFIGURATION

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FIG. 15.20 Series impedances.

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VOLTAGE DIVIDER RULE

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FIG. 15.41 Example 15.10.

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FREQUENCY RESPONSE FOR SERIES AC CIRCUITS

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FIG. 15.46 Reviewing the frequency response of the basic elements.

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ADMITTANCE AND SUSCEPTANCE

  • In ac circuits, we define admittance (Y) as being equal to 1/Z.
  • The unit of measure for admittance as defined by the SI system is siemens, which has the symbol S.
  • Admittance is a measure of how well an ac circuit will admit, or allow, current to flow in the circuit.
  • The larger its value, therefore, the heavier is the current flow for the same applied potential.
  • The total admittance of a circuit can also be found by finding the sum of the parallel admittances.

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ADMITTANCE AND SUSCEPTANCE

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FIG. 15.58 Parallel ac network.

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ADMITTANCE AND SUSCEPTANCE

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FIG. 15.59 Admittance diagram.

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ADMITTANCE AND SUSCEPTANCE

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FIG. 15.64 Impedance diagram for the network in Fig. 15.63.

FIG. 15.65 Admittance diagram for the network in Fig. 15.63.

FIG. 15.63 Example 15.14.

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PARALLEL AC NETWORKS

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FIG. 15.67 Parallel ac network.

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PARALLEL AC NETWORKS�R-L-C

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FIG. 15.77 Parallel R-L-C ac network.

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PARALLEL AC NETWORKS�R-L-C

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FIG. 15.78 Applying phasor notation to the network in Fig. 15.77.

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PARALLEL AC NETWORKS�R-L-C

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FIG. 15.79 Admittance diagram for the parallel R-L-C network in Fig. 15.77.

FIG. 15.80 Phasor diagram for the parallel R-L-C network in Fig. 15.77.

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PARALLEL AC NETWORKS�R-L-C

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FIG. 15.81 Waveforms for the parallel R-L-C network in Fig. 15.77.

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CURRENT DIVIDER RULE

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FIG. 15.83 Example 15.16.

FIG. 15.84 Example 15.17.

FIG. 15.82 Applying the current divider rule.

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THANK YOU

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