AC CIRCUIT 2 Flashcards
What does Z represent?
Impedance
What are some applications of RL circuits?
For supplying DC power to radio-frequency amplifiers where the inductor is used to pass DC bias current and block the RF returning back into the power supply.
RL circuits can form a single-pole filter. The filter is low-pass or high-pass is dictated by whether the reactive element (C or L) is in series with the load or parallel with the load.
Radio Wave Transmitters.
Communication Systems.
Processing of Signal.
Oscillator Circuits.
Magnification of Current or Voltage.
Filtering Circuits.
What is the role of the inductor in an RL circuit?
The role of an inductor in the circuit is to oppose the change in the magnetic flux, i.e the inductor does not allow the spontaneous changes in the current. When we close the switch of the circuit, there is a gradual increase in the value of current to a maximum value. When we open the switch and remove the battery, the inductor voltage causes the current to reduce gradually to the value of zero again.
