

A resistive load of R = 10Ω is to be connected to a 50Ω source, operating...
1. A step-down chopper is connected to a 90VDC source and a 3Ω resistive load. The chopper switching frequency is 5kHz with a 40% duty-cycle (D) Average free-wheeling diode current 2. A step-down chopper is connected to a 90VDC source and a 3Ω resistive load. The chopper switching frequency is 5kHz with a 40% duty-cycle (D) Size of inductance for a 10% peak-to-peak current ripple 3. VS = 90V EMF = 40V R = 2Ω L = 10mH switching frequency = 5kHz...
1. A step-down chopper is connected to a 150VDC source and a 3Ω resistive load. The chopper switching frequency is 5kHz with a 60% duty-cycle (D) Average load voltage? 2, A step-down chopper is connected to a 150VDC source and a 3Ω resistive load. The chopper switching frequency is 5kHz with a 60% duty-cycle (D) Average load current ? 3. A step-down chopper is connected to a 150VDC source and a 3Ω resistive load. The chopper switching frequency is 5kHz...
2. In the circuit shown below, the operating frequency for the transmit antenna is 300 MHz. At this frequency, we can represent the transmission line and antenna with a resistive load RL. This resistance accounts for radiated electromagnetic wave. The variable capacitor and inductor shown were tuned to achieve an impedance matching condition, i.e. where ZL is the impedance of the transmission line-antenna assembly and Zr is the Thévenin equivalent impedance of the driver circuit, including R., C and L....
4. (30 pts) In a radio frequency circuit, a (175Ω resistor) serves as a load at the end of a transmission line of (50Ω). We want to use a shorted stub in parallel to achieve maximum power transfer. Use a smith chart. a. (15 pts) Determine the minimum distance in wavelengths from the load that the stub must be connected. b. (15 pts) Determine the minimum length of the stub in wavelengths.
2. In the circuit shown: 8Ω 20 0 0 9 20 A 120 2 50Ω a. Find the Thevenin's equivalent circuit. b. Find the resistance of the load R connected between terminals a and b that absorbs the maximum power. Find the total power absorbed by other resisters in the circuit when the maximum power is being delivered to the load. Calculate the value of resister R that will draw the maximum current from the source Replace the current source...
Solve by hand and simulate in any electrical circuit
simulator preferrably LTSpice
Solve by hand only.
Problem #4: Consider the circuit shown below. 6Ω /8 Ω 302 2700 V (rms) 40 2 Source-Line Load (a) Find the real power dissipated in the line. (b) Find the capacitive reactance that when connected in parallel with the load will pl make the load look purely resistive. (c) What is the equivalent impedance of the load in (b)? (d) Find the real power...
A resistance R = 10Ω, a capacitor C = 15μF, an inductor of L = 38mH, and an alternating current source with a voltage amplitude of 50V to 160Hz are connected in series. A- Calculate the angular frequency of the source B- Calculate the XL, XC, and Z impedance reactances C- Calculate the lag between the circuit current and the source voltage D- Calculate the amplitude of the circuit current and express the circuit current as a function of time...
Assuming that the load impedance is to be purely resistive, what load should be connected to terminals a-b of the circuits in the given figure so that the maximum power is transferred to the load? Assume R 52 Ω. 100 Ω -j10Ω 40Ω 120/60° v (+ 2/90 A j30 Ω o b The value of R is Ω.
Which simple series circuit containing only a voltage source (Vs) and a resistive load (R) has the largest power dissipation: a) a circuit with a +10 V source in-series with a 100 Ω resistor b) a circuit with a +15 V source in-series with a 200 Ω resistor c) a circuit with a +20 V source in-series with a 300 Ω resistor d) a circuit with a +25 V source in-series with a 400 Ω resistor
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...