WebbAs a rule, true power is a function of a circuit’s dissipative elements, usually resistances (R). Reactive power is a function of a circuit’s reactance (X). Apparent power is a … Webbwhere cosθ is the power factor (pf). Reactive power in AC circuits is given by these equations: Q = EIsinθ VARs = I 2 X = V x 2 /X = Ptanθ. X is positive for inductors and …
In an a.c. circuit the voltage applied is E = E0 sinωt.
Webb4 mars 2024 · The maximum value of the potential/current in an Ac circuit is called the peak value of voltage/current. The average power dissipated in an AC circuit is given by: ⇒P avg = V rms I rms Cosθ. θ is the phase difference between voltage and current of AC current. Calculation: Given Current is \(I=100 \sin \left(100t + \dfrac{\pi}{3}\right)\) m A Webb3 okt. 2024 · When a voltage of 100 V at 50 Hz is applied to a choking coil A, the current taken is 8 A and the power is 120 W. asked Sep 25, 2024 in Physics by Abhinav03 ( 64.7k … cswd mission
The power in A.C. circuit is given by P = Ermsirmscosϕ . The value …
WebbElectrical Engineering. Electrical Engineering questions and answers. In the AC circuit given in the figure, the input voltage is given as 𝑣𝑠=50sin800𝑡 V. In this circuit, the load will be connected between terminals a-b. a. Calculate the value of the load impedance so that the average power transferred to the load is maximum. Webb17 dec. 2024 · Concept: The power triangle is as shown below. P = Active power (or) Real power in W = V rms I rms cos ϕ. Q = Reactive power in VAR = V rms I rms sin ϕ. S = Apparent power in VA = V rms I rms. S = P + jQ. S = P 2 + Q 2. ϕ is the phase difference between the voltage and current. Power factor cos ϕ = P S. Webb13 nov. 2024 · If emf in a circuit is given by e = 100 sin 628t, the maximum value of voltage and frequency are A. 100 V, 50 Hz B. 50√2 V, 50 Hz C. 100 V, 100 Hz D. 50√2 V, 100 Hz View Answer: 52. When the sole purpose of an alternating current is to produce heat, the selection of conductor is based on A. average value of current B. peak value of current cswdo batangas city contact number