Also, P is used for "real" power (which is 0 in this case), and Q is used for "reactive" power (which you calculated).engnrshyckh said:PQ=179VAR
How to find power factor in this case as P. F=COS@=R/ZTSny said:When AC voltage is applied to an ideal capacitor, the capacitor takes in energy for part of a cycle of voltage and the capacitor delivers energy back to the circuit for the remaining part of the cycle. The net energy delivered to the capacitor in one complete cycle is zero. So, over many cycles, there is no net energy supplied to the capacitor.
From the point of view of formulas, the average power supplied is not ##P_{\rm avg} = \large \frac{V^2}{Z}##. The formula should contain an additional factor called the "power factor". Is this something you have covered?
It should be zero if i am not wrong and cos0 becomes 1 so P. F of pure capacitive circuit become unityTSny said:For an ideal capacitor, what is the value of R?
Yes, R = 0.engnrshyckh said:It should be zero if i am not wrong
No, the formula says ##\cos \theta = R/Z##.and cos0 becomes 1
A capacitor is an electronic component that stores electrical energy in the form of an electric field. It is made up of two conductive plates separated by an insulating material. When a voltage is applied across the plates, one plate becomes positively charged and the other becomes negatively charged, creating an electric field between them. This electric field allows the capacitor to store energy.
An inductor is an electronic component that stores electrical energy in the form of a magnetic field. It is made up of a coil of wire that creates a magnetic field when current flows through it. This magnetic field allows the inductor to store energy.
The power supplied by a capacitor and inductor is different from other power sources because it is not a constant source of power. Instead, it stores and releases energy in a cyclic manner. This type of power is known as reactive power and is commonly used in AC circuits.
The power supplied by a capacitor and inductor is essential in AC circuits as it helps to regulate and stabilize the voltage and current. Capacitors and inductors can alter the phase relationship between voltage and current, which is crucial in AC circuits. They can also help to filter out unwanted frequencies and improve the overall efficiency of the circuit.
The power supplied by a capacitor and inductor can be calculated using the equations P=VI and P=I²R, where P is power, V is voltage, I is current, and R is resistance. In AC circuits, the power factor, which takes into account the phase difference between voltage and current, must also be considered. The power factor is calculated by dividing the real power (P=VI) by the apparent power (P=VrmsIrms).