Using rms values to represent their magnitudes, the voltage across and the current into a load are- as follows in phasor form: V = Vejo° and I = le-jø° Show that the instantaneous power p(f) = v(t) i(t) can be written as p(t) = P + P cos 2wt + Q sin 2wt, where average power P = VI cos o and reactive power Q = VI sin o.

Q: nts ce The voltage and current of an ac circuit are as follows: e = 141. sin (377t + 10) V and i =…

A:

Q: A sinusoidal voltage of 100V r.m.s (phase = 0) is applied across an impedance Z = (40 + 31.4j) Q.…

A: For given question we need to calculate RMS current and power factor and reactive power . We will…

Q: ms values to represent thei magnitudes,

A:

Q: Find the Phasor voltage Vo and the rms voltage for Vo in the circuit shown.

A:

Q: Calculate the root mean square and periodic mean values of currents given on graphs: T T 2T /2

A:

Q: 3- Use superposition theorem, find the value of v, and i, in the circuit shown below. i, 10 2 20Ω +…

A:

Q: None

A:

Q: Please only answer part d)

A:

Q: voltage source, E = 10 VZ30°, is applied to a capacitive impedance of 202. Solve for the phasor…

A: Step 1: Step 2: Step 3: Step 4:

Q: What is the rms value of the voltage V0 in the circuit given below

A: This network is combination of resistance, inductive and capacitive elements.  Rms value of Vo.…

Q: 30 kW 240/0° V rms (t 0.75 lagging (+1)

A:

Q: For the pair of waveforms (input and output) captured in that picture, write the mathematical…

A: Given- Vin = Yellow line Vout = Blue line Vin max = 2V Vout max = 440.0 mV Phase = -78.7483 degree…

Q: If a A-connected load has a balanced impedance ZA 94 -17° 2 and a voltage = Z VBC = 265 / 82° V rms,…

A: The 3-phase system,The impedence,The voltage,

Q: Puestion Thap The apparent power entering certain load z is 250VA at 퍼 the power factor of RMS…

A: Power entering the load is 250 VA RMS input voltage is 125 V. So,by formula P=VrmsIrms Putting the…

Sinusoids And Phasors

Sinusoids are defined as the mathematical waveforms that are used to describe the nature of periodic oscillations.

Circuit Theory

Electric circuits are a network that comprises of a closed-loop, which helps in providing a return path for the current through a switch. When the switch is activated, the load operates, and the current accepts a path to finish the circuit at a low potential level from the opposing high potential level. Electric circuits theory is a linear analysis that helps in establishing a linear relation of voltage and current for R (resistance), L (inductance), and C (capacitance).