Which of the following is required for application such as phase shifting or tuning circuits?

Which of the following is required for application such as phase shifting or tuning circuits? Correct Answer Variable inductance

  • Inductor is a device which stores energy in form  of magnetic field.
  • When current  flows through the inductor, it varies the flux linked with the component which induces magnetic field around the inductor. 
  • When a current changes abruptly in magnitude or direction, then the inductor induces a voltage and it possess the property of blocking AC and allowing DC to pass through it.
  • In certain applications such as phase shifting or tuning circuits , variable inductors are needed.
  • The inductance of the inductor can be varied by altering the number of turns wounded and also by increasing the area of the core inside the turns of the wire.

Related Questions

Which of the following parameter refer to maximum available tuning voltage to the required tuning-frequency range?