LAB REPORT 3-phy2049L

Question 3: A very simple model for the distribution of clectricity to a typical home is shown in the figure below. Some of components labeled a, b, c, d, c, f, g and h represent the electrical source to the home, some represent the wires that carry the electrical current from the source to the devices in the home requiring electrical power, some represent lamps, televisions, hair dryers and other devices that require power. Assume you are an engineer in charge of a project and one of your subordinate engineers reports that the interconnection in the figure does not pass the power check. The data for the interconnection are given in the table below. Is the subordinate correer? Explain your answer. If the subordinate is correct, find the error in the data. Explain your answer clearly. Based on your answer identify that which label(s) used for the electrical source, wires or other devices. a e h

A variable resistor enables one to change the resistance.  One design involves a horizontal tube of wire with a slider on the top.  By moving the slider, one can change the length of wire involved, thus changing the resistance.  Imagine a tube of wire with one layer made from wire 1.00 mm in diameter wrapped in a single layer with no gaps between the loops of wire ( the wire looks like a solid layer down the length of the tube).  The radius of the tube is 2.50 cm.  Moving the slider 1.00 cm changes the resistance of the variable resistor by 3.00 Ohms.  What is the resistivity of the wire, and what is it made of?

sub-parts to be solved (d) and (e)

Considering that the power loss of a resistor is  and the information in the manual’s background section, derive an expression for the energy lost through Joule heating in a resistor when a capacitor completely discharges

lell L1 R Ro 2. In this figure, assume arbitrary numbers for R1, R2, L1, and L2 including some number for the battery E. Find the rate of current in which inductor one (L1) is changing just after the switch is closed. Next, find the current in L1 after some time after the switch has been closed. lell

2 The figure is a graph of ... 5 (5 Points) Current Voltage the current across a voltage as a function of the potential difference through it the resistance as a function of the current across a component the current through a component as a function of the voltage across it All three of the above (a), (b), and (c) are true None of the above (a), (b), or (c) is true

"What is the initial resistance of a material in ohm, given: 23 ohms as the final resistance, 250C and 480C as the initial and final temperature and 0.00456/0C as the temperature coefficient of resistance of the material at 480C?"

Enumerate and discuss each briefly electrical materials that gives major concerns in creating electrical design and installations (in your own words)

a)Write the relationship between V1 , R1 , Rc and Ic .b)  Write the relationship between V2 , R2 , Rc and Ic .c) Write the relationship between V3 , R3 , Rc and Ic .d)  Determine the values of Rc and Ic .e)  Determine the value of R3 .

3a. Please I want a solution of this question with all details. Many Thanks Note: It is preferable to solve by typing.

Number 9 Please show your detailed solution. Number 9 Please show you detailed solution. A 50-ohm resistor is in series with a 40-?F capacitor across a constant potential source of 180 volts. Determine frequency that will give current of 3.13 amp. A. 250 Hz C. 160 Hz B. 200 Hz D. 140 Hz

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

this question is related to subject ELECTRIC CIRCUIT ANALYSIS I . solve this question on A4 page manually. kindly send with in 30 mintues. thanks.

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. The potential between two principal nodes is zero.

The coil of a measuring instrument has a resistance of 1-ohm and the instrument has a full scale deflection of 250 V when a resistance of 4999 is connected with it. Draw a circuit by using given data and Solve it to find the full scale current of the PMMC meter when used as voltmeter.

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?

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

A thermistor is placed in a 200°C environment and its resistance measured as 30000Q. The material constant B is 3627°K. If the thermistor is then used to measure a particular temperature and its resistance is measured as 6002. The thermistor temperature in °C. Select one: O a. 573 Ob. 255 OC. 692.64 d. 965.64

B2. Determine the resistance of an aluminium coil of 1.4 cm as diameter consists of 15600 turns and the mean length per turn is 43 cm. Take the electrical resistivity aluminium coil as 0.018 μ0-m. The area in cm² is The total length in m is The resistance of the coil in 2 is

For drowning use Multibism

Only D and E

Please answer quickly

could you help me please it's one question

How temperature effect conductivity? Explain with the help of following equation. m e'n7'

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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…