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Provide the solutions to these questions:
1. The potential difference measured across a coil is 4.5V when it carries a direct current of 9A. The same coil when carries an alternating current of 9A at 25Hz, the potential difference is 24V. Find the current, the power and the power factor when it is supplied by 50V, 50Hz supply.
2. In a particular R-L series circuit a voltage of 10V at 50Hz produces a current of 700mA while at the same voltage at 75Hz produces 500mA. What are the values of R and L in the circuit?
A 1(lambda) wavelength long line has parameter R=0.2 Ohm/m, G=0.002 mho/m, L=15 muH/m and C=2.31pF/m. The line is operated at a frequency f=2.5 GHz. It is terminated with a load impedance of 100 Ohms.
Derive a sequential circuit with one input (w) and one output (z) using D flip flops that detects an input sequence of 101. Use a Moore model, and show all of your work including the state machine, state table, state assignment, state assignment t..
the highest frequency for a message signal is 15 Hz. it AMmodulates a carrier of 500 kHz. Plot the frequency spectrum of the modulated signal. is the highest frequency component of the modulated signal just 15+500000 Hz
Determine the gain K so that the phase margin is 45 degrees. For the gain K selected in part (a), determine the gain margin. Predict the bandwidth of the closed-loop system.
in the process of sampling an analog signal g(t) is multiplied by a periodic train of rectangular pulses c(t)each of unit area ,given that the pulse repetition frequency of this periodic train is fs and the duration of each rectangular pulse is T
Draw the logic circuit to represent the Boolean expression using only NAND gates - State what is meant by input and output interfaces in relation to PLCs.
A 5-bit shift register receives an input of r = 1 0 0 1 00 1. After all data is input, what is in the shift register output
The parallel resonant converter as a single-phase high-quality rectifier.It is desired to utilize a transformer-isolated parallel resonant dc-dc converter in a single-phase low-harmonic rectifier system
A dielectric rod of radius 10mm extends along the z axis from z=0 to z=10m. The polarization of the rod is P = [2z^2+ 10] az (az ==> is towards the z component in other words its the the unit vector k )
Use the amplifier of Example 12.4 in a balanced configuration operating from 3 to 5 GHz. Use quadrature hybrids, and plot the gain and return loss over this frequency range. Using microwave CAD software, optimize the amplifier matching networks to..
What are the advantages and disadvantages of estimating the voltage regulation of an Alternator by EMF method?
implementation of the projectin this project we are implementing the analog and digital modulation techniques.analog
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