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Resonance

1. SERIES RESONANCE AND
PARALLEL RESONANCE
SANKET S GONDI

2. RESONANCE
Definition: The properties of cancelation of reactants when an inductive and
capacitive reactants are in series or cancelation of susceptances when in parallel is
called resonance. An AC circuit is said to be in resonance when the applied voltage
and the circuit current are in phase thus at resonance the circuit consists only
resistance and power factor of circuit become unity.
•There are two types of resonance thay are Series resonance & parallel
resonance

3. APPLICATIONS OF RESONANCE
•Tuning in radio and T.V recievers.
•Tuned circuits in communication fields such as radar, sonenar,telementry
etc.
•It can be used as load impedance in output circuits of R.F amplifiers
(Radio frequency).
•A resonent circuit is used as filters.

4. SERIES RESONANCE
Definition: Series resonance is a resonance condition that usually occurs
in series circuits,where the current becomes a maximum for particular
voltage.

5. CHARACTERISTICS OF SERIES RESONANCE
•Impedance is minimum and circuit is purely resistive.
•Current is maximum
•Frequencies, other than the resonant frequency are rejected.
•Resonance occurs when Inductive reactance (XL =2πfL)equals capacitive
reactance(XC = 1/2πfC).

6. PARALLEL RESONANCE
A resonance condition that usually occurs in parallel resonant circuits,
where the voltage becomes a maximum for a given current.

7. CHARACTERISTICS OF PARALLEL RESONANCE
•Impedance is maximum.
•Current is minimum.
•The circuit rejects but allows the current to flow for other frequencies.
•Resonance occurs when inductive reactance (X = 2πfL)equals capacitive
reactance (XC = 1/2πfC).