What are uses of series and parallel resonant circuits?

Posted on by Muna Meyer

What are uses of series and parallel resonant circuits?

A series resonant circuit provides voltage magnification. A parallel resonant circuit provides current magnification. A parallel resonant circuit can be used as load impedance in output circuits of RF amplifiers. Due to high impedance, the gain of amplifier is maximum at resonant frequency.

What are the important features of LCR series resonance?

Resonance occurs when XL = XC. Impedance is minimum and the circuit is purely resistive. Current has a maximum value. When a number of frequencies are fed to it, it accepts only one frequency (fr) and rejects the other frequencies.

What is series resonance circuit?

Series resonance is a resonance condition that usually occurs in series circuits, where the current becomes a maximum for a particular voltage. In series resonance, the current is maximum at resonant frequency. The series resonance current curve increases to a maximum at resonance then decreases as resonance is passed.

What is the importance of series resonance circuit?

The high value of current at resonance produces very high values of voltage across the inductor and capacitor. Series resonance circuits are useful for constructing highly frequency selective filters. However, its high current and very high component voltage values can cause damage to the circuit.

Which is better series or parallel?

Magnetic Circuit Breaker: These circuit breakers are ideal for situations when the excess current is big,but shorter in duration.

  • Thermal Circuit Breaker: This circuit breaker is the opposite of magnetic circuit breakers.
  • Thermal-Magnetic Breaker: A thermal magnetic breaker combines the best of both worlds when it comes to circuit breakers.

    • What is the difference between series vs parallel circuits?

    It has a simple design that is easy to understand.

  • It does not overheat quickly.
  • It has a higher output voltage so that we can add more power appliances.
  • It carries the same current throughout the circuit.

    • How to solve any series and parallel circuit problem?

    Make a chart to keep track of your work. If you have a parallel circuit with several unknown values,a chart will help you organize your information.

  • Fill in all the information given by the problem. For our example,we’ll use a circuit powered by a 12 volt battery.
  • Copy the voltage value to each branch.
  • Use Ohm’s Law to find the current in each branch.

    • What is the formula for parallel resonance?

    The circuit impedance is purely resistive because there is no frequency term present in it.

  • The value of Zr will be very high because the ratio L/C is very large at parallel resonance.
  • The value of circuit current,Ir = V/Zr is very small because the value of Zr is very high.