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A coil of copper wire has a resistance of 90Ω at20oC and is connected to a 230V supply. By how much mustthe voltage be increased in order to maintain the current constantof the temperature of the coil rises to 60oC? Take thetemperature coefficient of resistance of copper as 0.00428 from0oC.
A signal is sampled every 1ms for 20ms, with the following actual values of the analogue voltage at successive sampling times. Plot the values of the voltage recorder by a 5 volt, 4 bit ADC assuming that the noise level is much lower
a) The number of turns on its high side. b)The turns ratio when it is used as a step-down transformer. c) The turns ratio when it is used as a step-up transformer.
Draw a diagram for a MOD-10 Johnson counter using a 74HC164. Makesure that the counter will start the proper sequence when it isturned on. Determine the count sequence for this counter and draw the decoding circuit needed to decode each of the 10 ..
The Dinorwig pumped storage hydroelectric facility in Northern Wales utilizes an abandoned slate quarry named Marchlyn Mawr as the upper reservoir. 600 meters below the Llyn-Peris lower reservoir can be found. The plant contains six 288MW generato..
Design a single-pole PIN diode switch operating at f = 8 GHz. A PINdiode has the following parameters: Cj = 0.03 pF, R(forward) = 0.2Ω, R(reverse) = 7 Ω, Li = 0.6 nH, Zo = 50 Ω. Find what type of connection, series or shunt, gives thegreatest ratio..
When the scope probe is properly calibrated, it can be modeled as a 9[M Ohm] resistor in parallel with a capacitor having a capacitance l/9th that of the oscilloscope input capacitance.
A combinational logic circuit has two control inputs, C1 and C2, two data inputs, A and B, and one output, Z. Design a logic circuit that performs the logic operations on the two data inputs as specified in the table below: C1 C2 Logic Function
Write an MIPS assembly language program to calculate (2* ! N ) where ! is the factorial of a given positive integer N using loop.
The Finite-Difference Time-Domain (FDTD) method is a computational electromagnetic technique for solving for the electric and magnetic fields in arbitrary spatial domains in the time domain
A 2.4KV, single-phase circuit suppllies a load of 250KW at a lagging power factor, and the load current is 160A. If it is necessary to improve the power factor, determine the following: (a)The uncorrected poer factor and reactive load.
The Boston Celtics have won 16 NBA championships over approximately 50 years. Thus it may seem reasonable to assume that in a given year the Celtics win the title with probability p=0.32, independent of any other year.
A binary waveform of 53000 bits/sec is converted into an 8192 level waveform that is passed through a channel with a raised cosine-rolloff filter characteristic. The channel has a conditioned (equalized) phase response out to 4.0 kHz.
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