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1. Find XL for the following inductors. In each case, the frequency is 100 Hz. a. L = 250 milliHenries b. L = 50 microHenries
2. Find XC for the following capacitors. In each case, the frequency is 5 KHz. a. C = 10 microFarads b. C = 470 picoFarads
3. The peak voltage supplied to an AC circuit is 20 V. The peak current is 2.5 A. The angle between the voltage and current is 30 degrees. What is the power in Watts supplied to the circuit?
4. The rms voltage supplied to an AC circuit is 24 V. The rms current is 0.75 A. The angle between the voltage and current is -60 degrees. What is the power in Watts supplied to the circuit?
5. Convert to polar: a. 100 angle 30 degrees b. 50 angle -60 6. Convert to rectangular: a. 10 + j 20 b. 100 - j 20
2. What is the expected output frequency of a sample and hold system if fs= finput 3. Which is input frequencies will give an output frequency of 50 Hz when put through a sample and hold system if our sampling frequency is 488 Hz
Two amplifiers(CS) connected in cascade. The input voltage to the first stage has a source voltage Vsig and Rsig= 100KOhm. Rv=10KOhm AND IS CONNECTED TO THE DRAIN OF THE SECOND STAGE. BOTH TRANSISTORS HAVE Id=.25mA and Vov=.25V
Determine experimentally the value of a resistor that when placed across the battery will make a measurable change in measured battery voltage. Keep the voltage decrease from open circuit value to 10% or less.
Suppose the RTD of (108.1 Ohms) has a dissipation constant of 25mW/°C and is used in a circuit that puts 8 mA through the sensor. If the RTD (108.1 Ohms) is placed in a bath at 100°C, what resistance will the RTD have
Two delta-connvected loads are connected in parallel and powered by a balanced Y-connected system. The small of the two loads draws 10k VA at a lagging Power Factor (PF) of 0.75, and the larger draws 25k VA at a leading PF of 0.80.
A winding consists of 50 turns of a metallic conductor in a loop square with sides of 0.20 m in length each. The winding has center at the origin with two sides parallel to the axis of x the other two sides parallel to the y-axis
calculate the convolution (x1[x]*x2[k]) for the following pairs of sequences: a-) x1[k]=u[k+3]-u[k-2] and x2[k]=u[k+5]-u[k-4] b-) x1[k]=0.5^k u[k] and x2[k]=cos Pi*k u[-k]
A three 120 - V power line is Y-connected. The three phase outputs are marked as a,b,c. The neutral is marked as n. The phase sequence is abc. It is connected to a balanced Y- connected load, with the impedance is 12 + j 9 omega.
The tuning control is required to provide a uniform, linear change in frequency for a fixed rotation of the knob, e.g., 25 kHz per revolution at any operating frequency. You are considering three options for controlling the frequency
A 75-kVA, 230-V/115-V, 60-Hz was tested with these results: Open-circuit test: 115 V, 16.3 A, 750 W; Short-circuit test: 9.5 V, 326 A, 1200 W a) Determine the voltage regulation at rated load, 0.8 power factor lagging.
Binary symmetric channel, Assume that we are transmitting binary digits over a binary symmetric channel. Let p(x=0)=p(x=1)=0.5.
(a) If five different types of chips are to be placed on the board, how many different layouts are possible (b) If the five chips that are placed on the board are of the same type, how many different layouts are possible
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