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How to Testing Electrical and Electronics Components and Devices with Multimeter ?
An unspecified resistance, R, and a 12Ω resistor are both connected across a 24V source in parallel. The power dissipated by R is 12W. Determine the value of R and the total power delivered by the source.
generated by a loud speaker is reflected at two different walls with reflection coefficients r1 and r2. the signal x(t) recorded by amicrophone close to the loud speaker, after sampling is
The motor details are as follows: 1 hp, 10V, 2500 rpm, 78.5 % efficiency, Ra=.01 O, La=.002 H, Kb= .03819 V/rad/sec. The chopper is one quadrant, and the on-state voltage drop across the device is assumed to be 1V regardless of the current variati..
You have a computer with a 1 GHz processor (that executes each instruction in one clock cycle) and a memory system that always takes 50ns to access one word. How long does it take to execute the instruction a = b + c
Despite the advantages to the synchronous alternator there is a downside and this has to do with keeping the load balanced on such a machine. Why is balancing the load so important to the synchronous alternator?
a toroidal maganitic core is wrapped with a coil of wire containing 200 turns. the cross sectional area of the core is 10 cmsq,and the mean length around the core is 20 cm. the material permability is 0.001 hy/m. what is the inductance of the devi..
A current source of 12 cos 2000t A, a 200-ohm resistor, and a 0.2-H inductor are in parallel. Assume steady-state conditions exist. At t = 1 ms, find the power being absorbed by the (a) resistor; (b) inductor; (c) sinusoidal source.
What is the shape of the spectrum of the signal? What is the extent of the spectrum in the frequency domain? What is the unit that is applied to the magnitude of the spectrum?
To transmit this signal by binary PCM without compression, uniform quantization is adopted. If the SQNR is required to be atleast 43dB, determine the minimum number of bits required to encode the uniform quantizer. Determine the SNR obtained with ..
The specific heat capacity of glass is 840 J/(kg · C°). When identical amounts of heat are supplied to each, the glass bar reaches a temperature of 90 °C, while the other bar reaches 290.0 °C. What is the specific heat capacity of the other substa..
A typical50,000 watt AM broadcast transmitter will generally have severallow power audio amplifier stages, a high power (~25,000 watt) audiooutput stage to generate the audio power that modulates the RFcarrier, low power RF stages to generate the ..
Two machines and a lighting load are connected in parallel to a 220 V, 60 Hz line. The first machine uses 40 kW of power at 0.81 power factor lagging. The second machine uses 27 kVA at 0.93 power factor leading. The lighting load consumes 13 kW.
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