Question (1) The voltage across and the current through a certain circuit is: e()-150 sin (377t+...
Using rms values to represent their magnitudes, the voltage across and the current into a load are as follows in phasor form: v - Ve/o° and I -le-i Show that the instantaneous power p() v)i(t) can be written as pt) PP cos 2Q sin 2ut, where average power cos φ and reactive power Q-VI sin φ if I'= 120 V, 1-| A, and Φ = 30°, find the actual value of P. Q. S and power factor (PF). Is this...
The phasor voltage across a certain load is V = 1000√ 2∠ 30∘ V, and the phasor current I = 15 √ 2∠ 70 ∘ A. Determine the power factor. Determine the power. Determine the reactive power. Determine the apparent power delivered to the load. Determine the impedance. Is the power factor leading or lagging?
11·The current through each element and voltage drop across each element are given for the circuit shown below. 7.273 mA -7273 mA a10V7.273 う-" . | c | |-5455 n1A d - 2.727 V 1.818 mA a. Use passive sign convention to determine the power for each circuit element. b. Which circuit elements are absorbing energy from the circuit? c. Which circuit elements are supplying (delivering) energy to the circuit? d. Is this circuit balanced? In other words, is the...
Determine the circuit element if the voltage across and the current through the element is given by: v = 50 cos(ωt + 20°) i = 5 sin(ωt + 110°)
1. The current through a 0.1-H coil is provided. Find the sinusoidal expression for the voltage across the coil. Sketch the v and i curves. a. i = 10 sin 377t b. i = 7 sin(377t - 70°) 2. The voltage across a 1-micro F capacitor is provided below. What is the sinusoidal expression for the current? Sketch the v and i curves. v = 30 sin 400t 3. For the following pairs of voltages and currents, determine whether the...
3. (30% ) The voltage and current at the terminals of a load circuit are given by: )=1202 sin(ar) V i ()=812 sin(ar-60)+6/2 sin(Bax -120) A (V) and (A). (a) Find (b) Find the real (average) power P delivered to the load. (c) The distortion factor of the current waveform. (e) Find the displacement power factor DPF for this circuit. (f) Find the power factor of the load. (g) Is the load linear? 3. (30% ) The voltage and current...
Please show how this transformers problem is done. Thanks!
Problem 3ph [10 pts]: Y-connected source: A Y-connected balanced three-phase source is feeding a balanced three-phase load (it doesn't matter whether the load is Y or Delta connected). The voltage and current of the source are: van (t) - 340 sin (377t + 0.5236) ia(t) 100sin (377t 0.87266) Calculate the following: (a) The rms phase voltage (Van, magnitude and phase). (b) The rms line-to-line voltage (Vab, magnitude and phase) (c) The...
Calculate the current through and voltage across each circuit
element using Mesh Analysis
Determine the current through and voltage across each circuit
element using Nodal Analysis
Find the Thevenin equivalent circuit for the network external
to the resistor R5 and use it to calculate the voltage
across as well as the current through the resistor
R5
Find the Norton equivalent circuit for the network external to
the resistor R5 and employ it to compute the voltage
across as well as...
The figure below shows the current through and the voltage across an element. (a) Sketch the power delivered to the element fort > 0. (b) Find the total energy absorbed by the element for the period of 0 4s. i (mA) 60 4 t(S) v (V) 0 4 t (s)
a.)
Find the voltage across and current through each passive element in
the circuit below while maintaining the given reference polarities
and directions.
b.) Determine the amount of power delivered to each passive
element.
c.) Determine the amount of energy stored in each passive
element.