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Two single-phase transformers rated 600 kVA and 500 kVA respectively, are connected in parallel to supply a load of 1000 kVA at 0.8 lagging power factor. The resistance and reactance of the first transformer are 3% and 6.5% respectively, and of the second transformer 1.5% and 8% respectively. Calculate the kVA loading and the power factor at which each transformer operates.
A three phase generator is connected to a three phase load via a step up three phase transformer, a short three phase transmission line and a step down three phase transformer.
Similar to impedance, resistance, and reactance, which are measured in ohms (S2), admittance, conductance, and susceptance are measured in siemens (S). Find the admittance, conductance, and susceptance of a 100 Ω resistor in series with a 10/µF ca..
Find the unloaded Q of this resonator if the complex propagation constant of the line is α + jβ.
A quartz crystal microbalance (QCM) was employed in a vacuum deposition process, where a thin film of aluminum was grown over a p-Si wafer. The oscillator frequency at the start of the process was 10.0050 MHz.
consider a running motor with Z = 6 + j7 ohm A) calculate the line crurrent if the motor is operated at 120 VAC RMS B) calculate the required paralell capacitor value to reduce the line current to a minimum
in the circuit shown in figure an ideal ohmmeter is connected across ab with the switch s open. all the connecting
A motor and position controller has an output position x(t) and an input voltage v(t). The transfer function for the system is X/V = [64(s+4)]/[s^2 +4s+8] (a) Determine x(t) for a unit step input voltage such that v(t) = 1u(t).
What is MCB (Miniature Circuit Breaker) ? and How to Read MCB Nameplate Data Rating Printed on it?
A network router connects multiple computers together and allows them to send messages to each other. If two or more computers send messages simultaniously, they collide and the messages must be resent. Design a collision free circuit for a router..
Calculate the peak coil current for V x = 950 V. - Calculate the time t 1 at which diode D turns on.- Calculate the energy dissipated in the resistor for V x = 950 V.
which semiconductor device and circuit technologies made the wide spread of mobile communications possible How modern electronics technology affects positively and negatively your personal life, the work environment and the global society
1)A passive high-pass filter is built from a 100 kohm resistor and a 100 nF capacitor. what is its cutoff frequency 2)For the filter in the above question what is its numeric gain at its cutoff frequency
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