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Dealing with a single phase transformerA 1000kva single phase, double wound transformer has thefollowing specifications:Primary winding resistance 0.4ΩSecondary winding resistance 0.005ΩPrimary voltage 6600VSecondary Voltage 4ooVIron loss 3kwAssuming unity power factor, determine the full load currentsin the primary and secondary windingsAt full load, determine the power losses in the primarysecondary resistances.If the input power to the transformer at full load is 1000kw,determine the transformer's efficiency at full load.
a) Design a circuit with a single opamp to realize V0=V1-4V2, where V1 and V2 are two input voltages. b) Select the resistor values so that no more than .25W is dissipated in any resistor when the input voltages are no larger than 10V
For a coaxial line with inner conductor radius a and outerconductor radius b, V = V0 at ρ = a and V = 0 atρ = b. Find the potential distribution by solving Laplace'sequation. Also find capacitance per unit length.
A certain 100-watt light bulb costs 75 cents and lasts for 120 hours. Another longer-lived 100-watt light bulb costs $1.20. How much longer would the more expensive bulb have to last to make it a "good buy"
For each of the following functions find the values of S & Wn (omega n) and characterize nature of response (overdamped,underdamped,critical damped,etc) a) G(s)= 225/ s^2 +30s+225 b) G(s)= 625/ s^2 +625
Electrical wiring: Potentials of neutral and earth wires, Why is the neutral wire in housing circuits also at zero potential
The voltage across the load must remain between 4.7 and 5.0 V for all values of load current. Design a voltage-divider network to supply the load. You may assume that resistors of any value desired are available.
A rifle is aimed horizontally at a target 50.0 m away. The bullet hits the target 2.00 cm below the aim point. A. What was the bullet's flight time B. What was the bullet's speed as it left the barrel
A three-phase overhead transmission line has a per-phase resistance of 0.15 ohm/km, and a per-phase inductance of 1.3263 mH/km.
Design and simulate a power supply that takes line voltage and produces a 15V output with less than .5% ripple voltage.
A digital communications system is being designed with the goal of transmitting 32 kbits/s over a channel having a bandwidth of 8 kHz. Determine (a) the number of encoding levels required and (b) the minimum signal-to-noise ratio required in the c..
Design the circuit so that the voltage at the gate is -12V, the drain current ID is 1 mA, and the drain to source voltage VDS is 4.7V. The JFET must be operating in the saturation region. Use standard 5% tolerance resistors.
Design a circuit using an 8-to-1 multiplexer that functions as a 4bit odd parity generator. An odd parity generator outputs 1 if andonly if an even number of inputs are high.
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