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1. What does the word retarded in the terminology retarded magnetic vector potential refer to? Explain.
2. Discuss the application of the magnetic vector potential in the determination of the electromagnetic fields due to an antenna.
Determine the current in a circuit consisting of a 1000-ohm resistor with a voltage of 50 volts DC across it. When using an ammeter, why do you place it in parallel with the circuit
Calculate the load power under this matching condition.
The per-phase impedance of a 600-V, three-phase, Y-connected synchronous motor is 5 + j50 Ω. The motor takes 24 kW at a leading power factor of 0.707. Determine the induced voltage and the power angle of the motor.
A base stationcellular communicationsystems lossless antenna has a maximum gain of 16 dB (above isotropic) at 1,900 MHz. Assuming the input power to the antenna is 8 watts, what is the maximum radiated power density (in watts/cm^2)
A 10-kVA 480/120-V conventional transformer is to be used to supply power from a 600-V source to a 480-V load. Consider the transformer to be ideal, and assume that all insulation can handle 600 V.
A single-phase circuit is placed across a 120-V rm, 60-Hz source, with an ammeter, a voltmeter, and a wattmeter connected. The instrucments indicate 12 A, 120 V, and 800 W, resppectively. Find (a) the power factor, (b) the phase angle
A mini-mart has just installed a bar codereader to improve efficiency at their checkouts. Assume that the bar code is to access a filethat store the product descriptions, unit price and quantity of each product sold in the shop.
Assuming an incompressible fluid and an inelastic piping system, determine the new steady-state discharge and the time it takes to reach 95% of that value. Assume that f = 0.015.
a) How many ADC bits are required b) What is the maximum allowable noise at the amplifier output c) Design the analog amplifier/filter. A temperature transducer has the relationship: R= 200 + 10T where R is the O and T is in C(Celcius).
discharge a capacitor of 1mF charged with a voltage of 1 volt we connect it, at time t = 0, with a esistor of R ohm. When we measure the voltage we find it to be V(r) (t) = e ^(-t) u(t). Determine the resistance of R. If the capacitor has a capaci..
Show the connections required to establish 4 kΩ between the wiper arm and one outside terminal of a 10-kΩ potentiometer.
the snowmobile is traveling at speed v0 when it leaves the embankment at a. determine the time of flight from a to b
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