Lab 7 (4)

Basic Electrical EngineeringDraw symbols of electrical components. Note: You may use both IEC and NEMA symbols. - Conductors crossing but not connected- Conductors crossing and connected - DC source other than battery- DC generator- AC voltage source- Ideal current source- Ideal Voltage Source- Current Controlled Current Source- Current Controlled Voltage Source- Voltage Controlled Current Source - Voltage Controlled Voltage Source

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I need helpo with this. I need step by step solutions for this and I cant figure it out.  Wire to be used in buildings and homes in the United States is standardized according to the AWGsystem (American Wire Gauge). Wires are assigned a gauge number according to their diameter.The scale ranges from gauge 0000 to gauge 36 in 39 steps. The equation for the wire gauge interms of the wire diameter in millimeters is the picture. (a) What is the equation for the diameter in millimeters in terms of the wire gauge N?(b) You have two wires, one that has five times the diameter of the other. By how much do thewire gauges differ for the two wires? (Give your answer to the nearest integer.)

Which of the following is an accurate statement? (A There could be two or more reference node in a given network. B The principal node is considered as lower potential with respect to reference node. Any principal node can be used as reference node. D The potential between two principal nodes is zero.

Please type out and or diagram Your solution I have bad eyesight and have a hard time reading handwriting

Find all types of power losses (the second photo shows the types of power losses) The weight of the car is 800 Kg The weight of each person is 75 Kg You may assume any missing parameters you need in the design appropriately (e.g., the rolling-resistance-power, air-resistance-power, the DC motor's parameters, ....etc)

Discussions:Voltage Distribution and String Efficiency of a Model Suspension Insulator       1- Comment on the results obtained.2- Give reasons for unequal potential distribution over the string.3- What is the effect of this un equality on the insulators?4- Can value of the string efficiency being equal to 100%. Explain your answer.5- Outline methods used to equalize the potential across the units.6- Why an insulator is represented as a capacitor C? What are the assumptionmodes?

Shown below is a DC circuit that contains a number of switches. Each switch is resistanceless when closed. All of the connecting wires may be considered to have zero resistance. All of the resistors shown are identical. The circuit contains an ideal voltmeter. The diagram shows all of the switches open. Beside the diagram are eight different switch configurations for the circuit. Rank these configurations in terms of the voltmeter reading. That is, put first the configuration for which the voltmeter gives the largest reading, and put last the configuration for which the yoltmeter gives the smallest reading. If two or more configurations produce the same voltmeter reading, give these configurations equal ranking. S2 S3 Configuration Wr A Орen Open Орел B Орen Ореn Closed W- Орen Closed Орen r42 Closed Орen Closed S2 Closed Open Орen F Closed Орen Clošed S3 G Closed Closed Open 1.64 Closed Closed Closed 3. 5. 6 7_ 8_ Smallest Lárgest 1 2 Or, all configurations produce the same voltméter…

Lighting consumes 4% of the energy consumed by a building. Control strategies that turn lights on when the space is occupied are one energy savings strategy. In this problem, we'll calculate the energy impact of a lighting schedule. For the purposes of this problem, a neopixel is a single LED. A neopixel strip is a group of LEDs. A) Measure the current draw of your neopixel strip of 5 LEDs when all 5 lights are powered on, set to full brightness, with each RGB color set to 255. Report your answer in units of amps. B) Calculate the power consumption of your 5 neopixel strip when connected to a 5V source using the current measured in part A. Report your answer in units Watts. C) Imagine neopixels are used to light the entire engineering building, which requires 50,000 neopixels. Calculate the energy consumption due to lighting of the entire engineering building for one 7-day week assuming: i. Option 1: Lighting is on continuously for 7 days ii. Option 2: Lighting follows a schedule:…

For the given circuit, find the currents and (a) right after switch S is closed and (b) a long time after switch S has been closed. Let's now assume that the switch has been closed for a long time, and we again open the switch. (c) find the three currents right after the switch is open, and (d) find the potential drop across the resistor R2. (e) What would be values of all three currents a long time after switch S was opened second time? to R=120n R=30r L%3D3H %3D

Define ICBO and ICEO. What is the relation between ICBO and ICEO. Symbolically shows those currents.

What is Lenz's law and derive its formula.

2. You are employed in a large industrial plant. A 480-V, 5000-W heater is used to melt lead in a large tank. It has been decided that the heater is not sufficient to raise the temperature of the lead to the desired level. A second 5000-W heater is to be installed on the same circuit. What will be the circuit current after installation of the second heater, and what is the minimum size circuit breaker that can be used if this is a continuous-duty circuit?

Question 3 (a) Briefly explain what is the per-unit systero. (b) A resistance of 60n is selected as the base resistance in a circuit consists of three resistors. If R, =1002, R, =30002 and %3D R, = 200 calculate the per-unit vahue of each resistance. %3D (c) A power of, P-25KW and a voltage of, E-2400V are selected as the base power and base voltage of a power system respectively. Calculate the value of the base impedance, Z, and the base current, I,. (d) A resistor bas a per-nnit value of 5.3. Given the base power is P=250KW, and the base voltage is E,-12470V, calculate the ohmic value (actual value) of the resistor. (e) A 4000 resistor caries a cucrent of 60A. Given the base valne of voltage, E, 4KV, the base value of power, P, 500KTF, the base value of current, I, =125.4, and the base value of resistor, 2, = 320 calculate the following: i The per-unit resistance. ii. The per-unit current. ii. The per-unit voltage across the resistor. iv. The per-unit power.