What happens to current in an AC circuit?
Alternating current (AC) is an electric current which periodically reverses direction and changes its magnitude continuously with time in contrast to direct current (DC) which flows only in one direction.
What happens to current in an inductive AC circuit?
When capacitors or inductors are involved in an AC circuit, the current and voltage do not peak at the same time. This leads to a positive phase for inductive circuits since current lags the voltage in an inductive circuit. The phase is negative for a capacitive circuit since the current leads the voltage.
How is the power waveform of a RL series circuit obtained?
The power waveform for RL series circuit is shown in the figure. In this figure, voltage wave is considered as a reference. The points for the power waveform are obtained from the product of the corresponding instantaneous values of voltage and current.
When does a RLC series circuit behave as a RL series circuit?
When X L > X C, the phase angle φ is positive. In this case, RLC series circuit behaves as an RL series circuit. The circuit current lags behind the applied voltage and power factor is lagging. In this case,
How are resistor and inductors connected in a RL series circuit?
When an AC supply voltage V is applied, the current, I flows in the circuit. So, I R and I L will be the current flowing in the resistor and inductor respectively, but the amount of current flowing through both the elements will be same as they are connected in series with each other. The circuit diagram of RL Series Circuit is shown below:
How are sinusoidal waveforms created in an AC circuit?
AC Sinusoidal Waveforms are created by rotating a coil within a magnetic field and alternating voltages and currents form the basis of AC Theory. Direct Current or D.C. as it is more commonly called, is a form of electrical current or voltage that flows around an electrical circuit in one direction only, making it a “Uni-directional” supply.