Consider the circuit diagram below. Draw the power triangle for this circuit and compute the power factor. Note that the magnitude of vi(t) is given in peak volts (not RMS). R1 150 0 ww v, (t) 5 V L1 120 µF 850 mH 30 Hz
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- What is rms value of current (I) and active power delivered by source.Q6: An AC source operating at 60 Hz with a maximum voltage of 170 V is fed to a series combination of1.2kΩ resistor and 2.5μF capacitor connected in a timer circuit. How can you evaluate the maximumcurrent in the circuit? Can you estimate the rms value potential difference across each circuit element?Compare the power factor of this timer circuit with a circuit contain only ohmic resistance. Justify youranswer?A 29-Ω television and an 16-Ω amplifier are connected in series across a 158-V source of voltage from an outlet. A 34-Ω light bulb is also connected across the 133-V source and is in parallel with the series combination. (a) Determine the total rms current supplied by the voltage source. A (b) Determine the total average power supplied by the voltage source.
- In the circuit given on the side Ra=Rb=Rc=Basic frequency of 13 Ohm loadsit is powered by an AC voltage of f= 60 Hz. Power derived from the sourceits value was measured as Pk=9372.12 Watts. Each switchingthe element is triggered in such a way that it will be at 180 degrees.The DC bus voltage (E=?) and the effective value of the ic phase current(ic rms=?) calculate.Residential AC voltage for many European countries is 230 VRMS at 50 Hz. Calculate the following quantities for the AC signal: peak voltage, VP (in V); peak-to-peak voltage, VPP (in V); and period, T (in ms).The graph of the vs sign applied to the circuit in the figure is given above. The switch works ideally in the circuit Switch; When the applied input signal is positive, it becomes closed. Current flows through it) In the applied input signal, Vp = 12V, R = 10ohm, T = lms. According to this; a) Find the mean and rms values of the output voltage? b) Find the average input power and output power and calculate its efficiency. c) If we consider that there is a voltage drop of 1V on the switch; c.1) Calculate the average and rms values of the output voltage, c.2) Average input power and output power c.3) Efficiency.
- An ideal battery of terminal voltage Vs= 120V supplies a resistive load of resistance 10 Ω as shown in the bellow class-A chopper circuit. The chopping frequency is f =1000 Hz and the duty cycle is set to be 0.25. (a) Sketch approximately to scale the output voltage waveform. (b) Determine the average output voltage. (c) Determine the rms output voltage. (d) Determine the dc power and ac power. (e) Determine the ripple factor and the chopper efficiencyConsider you have a network connected to a 100V,ms AC supply with an Ims of 10A and a power factor of 0.4 lead. What must be the power added to make the power factor 0.9 leading using power factor correction?In the circuit below, find the followa) Find the rms current passing through and the average power absorbed by resistor 1Ω due to the10 VDC source. b) Find the rms current passing through and the average power absorbed by the1Ω resistor due to the 5A AC source. c) What is the total average power transferred?
- Derive the formula for Average Power, Pavg = VI cosθ watts, where V is the root-mean-square (rms) voltage in volts, I is the root-mean-square (rms) current in ampere, and cosθ is the power factor. For the derivation, use the sinusoidal voltage and current equations. The angle between the voltge and current is angle θConsider the following equation: v (t) = 110 sin(78.5 t) Calculate: Frequency (f) = ? Time period (T) = ? Peak Voltage (Vp) = ? Average voltage (VAVG) = ? RMS voltage (VRMS) = ? Sketch the labelled waveform showing Peak voltage, full cycle and half-cycle times.Derive the expression for the average and rms load voltage for a three phase HWCR operating with an RL type load. ? What will be the average power in the load for the circuit shown, when alpha = π/4 Assume SCR to be ideal. Supply voltage is 330 sin 314t. Also calculate the RMS power .?