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A 20-KΩ / V voltmeter reads 10 V full scale.(a) What series resistance is required to make the meter read50 V full scale?(b) What power will the series resistor dissipate when themeter reads full scale?
The magnitude of the acceleration of the block is 1.93 m/s^2 (a) Find the coefficient of kinetic friction between block and plane? I got 0.393 but it is wrong. (b) Find the speed of the block after it has slid 1.90 m
two λ/2 dipoles are placed parallel to each other and spaced by a distance d = .15 λ , they are fed with antiphase currents so that I2=-I1=.7 Ampere, i- find the power radiated by the system taking into account the mutual impedance betwen the dipol..
A 150kVA, 2080/208V, 60Hz, Y/Y connected, three-phase, step-down transformer consists of three identical single-phase transformers. Each transformer has the following parameter values: Rl = 0.45-ohm, Xl = 2.2-ohm , R2 = 4.5m-ohm
Assume the resistance of a human person was 500 ohms, if a person was struck by lightning with a peak voltage of 100,000 volts, what was the peak current that would flow through the person
A 120-V source is to be connected to a load by two copper wires. The load is located 500 feet from the source. The maximum voltage drop due to the wire resistance is 10 V, which makes the minimum load voltage 110 V.
Compute the amount of time required to deliver 10 frames to the receiver with stop-and-wait flow control. Assume that all frames and ACKs are received correctly.
What will cause latch-up in a CMOS IC. What might happen in this condition. What precaution should be taken to prevent latch-up.
The open circuit test on a single-phase 15kVA, 7500/480 V, 60 Hz distribution transformer yielded the following: V = 7500V; I = 0.2006A; P = 180W Calculate the core parameters RC and XM and the magnetizing current IM.
Determine the maximum power that a 430 km, high-voltage 3-phase transmission line can transmit if the system voltage is 550kV and the impedance of the line is 0.5 ohm/km. Determine illuminance at a distance of 12 ft from source.
The power delivered to the element is p(t) = 4.9e-8t W. Compute the current in the element as a function of time, the voltage across the element as a function of time, and the total energy delivered to the element in the time interval 0
You happen to have a 5-V regulated power supply that you bought at Midwest Surplus Electronics in Fairborn, Ohio. Measuring the output voltage with your trusty voltmeter, you get an open-load reading of pretty close to 5 V.
Neglecting losses, determine the power that can be developedfrom Niagara Falls, which has an average height of 168 ft and over which the water flows at 500,000 tons per minute.
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