Electrical engineering
1. How can two 74157 and a 74151 be connected to generate a 16 to 1 multiplexer?
Electrical engineering 1. How can two 74157 and a 74151 be connected to generate a 16...
Electrical Engineering Question 2. Three loads are connected in parallel across a source as shown. Load 1 absorbs 7 kW and 8 KVAR. Load 2 absorbs 10 KVA at a lagging p.f. of 0.6. Load 3 absorbs 10 kW at a leading p.f. of 0.5. a) Find the total complex power absorbed by the three loads. 10.12 b) If V. = 12020° Vrms, find V, in polar form.
explain in detail, how the scientific method influences two electrical engineering biased test procedures.(stress tests, crash tests, eddy current tests, ultrasonic tests, liquid penetration 'etc')
All elect lie healer has the resistance R = 10ohm. Two identical electric heaters are connected in series, and then connected to the electrical source with potential difference AV = 115 1V. Calculate the total electric power consumed by the two heaters "in-series". Two identical electric heaters are connected in parallel, and then connected to the electrical source with potential difference delta V = 115 Calculate the total electric power consumed by the two heaters "in-parallel". Answer, how the two...
Mean entry-level salaries for college graduates with mechanical engineering degrees and electrical engineering degrees are believed to be approximately the same. A recruiting office thinks that the mean mechanical engineering salary is actually lower than the mean electrical engineering salary. The recruiting office randomly surveys 42 entry level mechanical engineers and 54 entry level electrical engineers. Their mean salaries were $46,000 and $46,900, respectively. Their standard deviations were $3450 and $4210, respectively. Conduct a hypothesis test at the 5% level...
Circuit Analysis in Electrical Engineering 4. A resistor and a capacitor are connected in series across a 270-V ac supply. When the frequency is 40 Hz, the current flowing in the circuit is 6.25 A. When the frequency is 50 Hz, the current flowing in the circuit is 7.5 A Calculate the resistance and capacitance of the resistor and capacitor respectively. (99.97 μF; 16.798 Ω) If the resistor and capacitor are now connected in parallel across the 60-Hz supply, calculate...
A) B) 2. Show how a 16-input multiplexer is used to generate the function Z=D'C'B'A+D'CBA' + DC'B'A +DC'BA +DCB'A. Label all pins. Io II I2 I3 I4 Is It Is Ie Ig 110 111 112 113 114 Ias S3 S2 S1 SO Z The given circuit is a generic 4-to-16 decoder. Show how to use it to implement the logic expression: X=D'C'B'A'+D'CB'A +DCB'A' +DCBA One additional logic gate is required. (Hints: Remember what the decoder circuit looks like in comparison...
Course : Electrical engineering Topic: Electrical Measurements 5.(a). Describe how pendulum scale is used for measurement of force (b). A barium titanate pickup has the dimensions of 5 mm x 5 mm x 1.25 mm. The acting force is 5N. The charge sensitivity of the material is 150 pc/N and permittivity is 12.5x 10-9 F/m. IF The modulus of elasticity of materials is 12.5 x 106 N/m². Calculate the strain, charge and capacitance. (c). (a) When a high value of...
A light bulb is connected to an electrical outlet. a. How much current (amps) is drawn by a 80W light bulb plugged into an electric outlet (electric potential = 120v)? b. What is the resistance of the light bulb?
2. Why it is dangerous to supply power to an unloaded series connected DC motor? Puerto Rico Polytechnic University Department of Electrical Engineering Electromechanical Energy Conversion Systems I Laboratory 89 3. How can you reverse the direction of rotation of a shunt DC motor? 4. Name and explain two methods to control the speed of a DC motor.
answer as u can make it up Lab #7-8 Objectives: 1. To understand Multiplexers and De-multiplexers. 2. To implement a basic multiplexer using AND, OR, and NOT, gates. 3. To verify the operation of Integrated Mulitplexers. Equipment: Digital Multi-meter, Breadboard, Power Supply, Function Generator, Oscilloscope. Components: 7404, 7408, 7432, 74151, 74138, LEDs, Resistors Procedure: 7. Draw the schematic of a 2-1 De-multiplexer using basic gates. 8. Write down the IC numbers and pin numbers of the gates in your schematic....