Schematics R1 R3 Rth R2 R4 RL E Eth Figure 11.1 Figure 11.2 Procedure 1. Consider...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Schematics R1 R3 Rth R2 R4 RL E Eth Figure 11.1 Figure 11.2 Procedure 1. Consider the circuit of Figure 11.1 using E = 9 volts, R1 = 3.3 k, R2 = 6.8 k, R3 = 4.7 k and R4 (RLoad) = 8.2 k. This circuit may be analyzed using standard series-parallel techniques. Determine the voltage across the load, R4, and record it in Table 11.1. Repeat the process using 2.2 k for R4. 2. Build the circuit of Figure 11.1 using the values specified in step one, with Road = 8.2 k. Measure the load voltage and record it in Table 11.1. Repeat this with a 2.2 k load resistance. Determine and record the deviations. Do not deconstruct the circuit. 3. Determine the theoretical Thévenin voltage of the circuit of Figure 11.1 by finding the open circuit output voltage. That is, replace the load with an open and calculate the voltage produced between the two open terminals. Record this voltage in Table 11.2. 4. To calculate the theoretical Thévenin resistance, first remove the load and then replace the source with its internal resistance (ideally, a short). Finally, determine the combination series-parallel resistance as seen from the where the load used to be. Record this resistance in Table 11.2. 5. The experimental Thévenin voltage maybe determined by measuring the open cireuit output voltage. Simply remove the load from the circuit of step one and then replace it with a voltmeter. Record this value in Table 11.2. 6. There are two methods to measure the experimental Thévenin resistance. For the first method, using the circuit of step one, replace the source with a short. Then replace the load with the ohmmeter. The Thévenin resistance may now be measured directly. Record this value in Table 11.2. 7. In powered circuits, ohmmeters are not effective while power is applied. An altenate method relies on measuring the effect of the load resistance. Return the voltage source to the circuit, replacing the short from step six. For the load, insert either the decade box or the potentiometer. Adjust this device Laboratory Manual for DC Electrical Circuit Analysis 53 until the load voltage is half of the open circuit voltage measured in step five and record in Table 11.2 under “Method 2". At this point, the load and the Thévenin resistance form a simple series loop as seen in Figure 11.2. This means that they "see" the same current. If the load exhibits one half of the Thévenin voltage then the other half must be dropped across the Thévenin resistance, in other words VRL = VRTH. Consequently, the resistances have the same voltage and current, and therefore must have the same resistance according to Ohm's law. 8. Consider the Thévenin equivalent of Figure 11.2 using the theoretical ETH and RTH from Table 11.2 along with 8.2 k for the load (RL). Calculate the load voltage and record it in Table 11.3. Repeat the process for a 2.2 k Joad. 9. Build the circuit of Figure 11.2 using the measured ETH and RTH from Table 11.2 along with 8.2 k for the load (RL). Measure the load voltage and record it in Table 11.3. Also determine and record the deviation. 10. Repeat step nine using a 2.2 k load. Data Tables Original Circuit R. (Load) VLoad Theory VLood Experimental Deviation 8.2 k 2.2 k Table 11.1 Thévenized Circuit Theory Experimental ETH RIH RTH Method 2 Table 11.2 Ra (Load) Vioad Theory VLoad Experimental Deviation 8.2 k 2.2 k Table 11.3 Questions 1. Do the load voltages for the original and Thévenized eircuits match for both loads? Is it logical that this could be extended to any arbitrary load resistance value? 2. Assuming several loads were under consideration, which is faster, analyzing each load with the original circuit of Figure 11.1 or analyzing each load with the Thévenin equivalent of Figure 11.2? 3. How would the Thévenin equivalent computations change if the original circuit contained more than one voltage source? Schematics R1 R3 Rth R2 R4 RL E Eth Figure 11.1 Figure 11.2 Procedure 1. Consider the circuit of Figure 11.1 using E = 9 volts, R1 = 3.3 k, R2 = 6.8 k, R3 = 4.7 k and R4 (RLoad) = 8.2 k. This circuit may be analyzed using standard series-parallel techniques. Determine the voltage across the load, R4, and record it in Table 11.1. Repeat the process using 2.2 k for R4. 2. Build the circuit of Figure 11.1 using the values specified in step one, with Road = 8.2 k. Measure the load voltage and record it in Table 11.1. Repeat this with a 2.2 k load resistance. Determine and record the deviations. Do not deconstruct the circuit. 3. Determine the theoretical Thévenin voltage of the circuit of Figure 11.1 by finding the open circuit output voltage. That is, replace the load with an open and calculate the voltage produced between the two open terminals. Record this voltage in Table 11.2. 4. To calculate the theoretical Thévenin resistance, first remove the load and then replace the source with its internal resistance (ideally, a short). Finally, determine the combination series-parallel resistance as seen from the where the load used to be. Record this resistance in Table 11.2. 5. The experimental Thévenin voltage maybe determined by measuring the open cireuit output voltage. Simply remove the load from the circuit of step one and then replace it with a voltmeter. Record this value in Table 11.2. 6. There are two methods to measure the experimental Thévenin resistance. For the first method, using the circuit of step one, replace the source with a short. Then replace the load with the ohmmeter. The Thévenin resistance may now be measured directly. Record this value in Table 11.2. 7. In powered circuits, ohmmeters are not effective while power is applied. An altenate method relies on measuring the effect of the load resistance. Return the voltage source to the circuit, replacing the short from step six. For the load, insert either the decade box or the potentiometer. Adjust this device Laboratory Manual for DC Electrical Circuit Analysis 53 until the load voltage is half of the open circuit voltage measured in step five and record in Table 11.2 under “Method 2". At this point, the load and the Thévenin resistance form a simple series loop as seen in Figure 11.2. This means that they "see" the same current. If the load exhibits one half of the Thévenin voltage then the other half must be dropped across the Thévenin resistance, in other words VRL = VRTH. Consequently, the resistances have the same voltage and current, and therefore must have the same resistance according to Ohm's law. 8. Consider the Thévenin equivalent of Figure 11.2 using the theoretical ETH and RTH from Table 11.2 along with 8.2 k for the load (RL). Calculate the load voltage and record it in Table 11.3. Repeat the process for a 2.2 k Joad. 9. Build the circuit of Figure 11.2 using the measured ETH and RTH from Table 11.2 along with 8.2 k for the load (RL). Measure the load voltage and record it in Table 11.3. Also determine and record the deviation. 10. Repeat step nine using a 2.2 k load. Data Tables Original Circuit R. (Load) VLoad Theory VLood Experimental Deviation 8.2 k 2.2 k Table 11.1 Thévenized Circuit Theory Experimental ETH RIH RTH Method 2 Table 11.2 Ra (Load) Vioad Theory VLoad Experimental Deviation 8.2 k 2.2 k Table 11.3 Questions 1. Do the load voltages for the original and Thévenized eircuits match for both loads? Is it logical that this could be extended to any arbitrary load resistance value? 2. Assuming several loads were under consideration, which is faster, analyzing each load with the original circuit of Figure 11.1 or analyzing each load with the Thévenin equivalent of Figure 11.2? 3. How would the Thévenin equivalent computations change if the original circuit contained more than one voltage source?
Expert Answer:
Answer rating: 100% (QA)
P A Given R33K Ru 82EA ASE to tind voltege Ru62kMesh Analysis auvS Loop 1... View the full answer
Related Book For
Fundamentals of Electric Circuits
ISBN: 9780073301150
3rd edition
Authors: Matthew Sadiku, Charles Alexander
Posted Date:
Students also viewed these physics questions
-
Consider the circuit of Fig. 3.80 except replace both npn transistors with n-channel MOS transistors. Neglect the body effect, and assume λ = 0. Use half-circuit concepts to determine...
-
Consider the circuit of Fig. 7.97. Find v0 (t) if i(0) = 2 A and v(t) = 0. 1 3 ett)
-
Consider the circuit of Figure 1. R1 179.355 vi AC 1 C1 0.1F Center frequency of fo Quality factor of Q R2 .ac dec 10000 1 1MEG Using LTspice (linear.com) 316.759 Gain at center frequency T These...
-
In 2022, Tornado Ltd. had average inventory of $92000. The 2022 income statement showed net sales of $2100000 and gross profit of $428000. In 2021, it was taking the company approximately 30 days to...
-
Use the following data to develop a curvilinear model to predict y. Include both x1 and x2 in the model in addition to x21 and x22, and the interaction term x1x2. Comment on the overall strength of...
-
Instacart is an online grocery delivery and pickup service that partners with more than 500 retailers across the United States and Canada. Costco is a major membership-only big box retailer operating...
-
The optimum speeds (in kilometers per hour) for 30 hatchbacks Approximate the mean of the frequency distribution. Car Speeds (in kilometers per hour) Frequency 20-24 15 25-29 8. 30-34 4 35-39 3
-
Alton Newman, age 67, is married and files a joint return with his wife, Clair, age 65. Alton and Clair are both retired, and during 2016, they received Social Security benefits of $10,000. Both...
-
Respond using research from Journal Articles to validate your response. Discuss the laws that govern wages, pensions, and employee compensation in the USA.
-
A base band digital transmission system that sends A-valued rectangular pulses through a channel at a rate of 20,000 bps is to achieve an error probability of 10 -6 . If the noise power spectral...
-
Which of the following transactions results in increase in liabilities and also decrease in liabilities? A Payment to creditors. B Payment of a bank loan. C A bill is accepted in payment of an open...
-
Find all possible I/O equations. \(\left\{\begin{array}{l}\ddot{x}_{1}+\dot{x}_{1}+3\left(x_{1}-x_{2} ight)=f_{1}(t) \\ \ddot{x}_{2}-3\left(x_{1}-x_{2} ight)=f_{2}(t)\end{array}, f_{1}(t), f_{2}(t)=...
-
Find all possible I/O equations. \(\left\{\begin{array}{l}\ddot{\theta}_{1}+\frac{2}{3} \dot{\theta}_{1}+\frac{1}{3}\left(\theta_{1}-\theta_{2} ight)=u(t) \\...
-
Find all possible I/O equations. \(\left\{\begin{array}{l}\ddot{x}_{1}+\dot{x}_{1}+2\left(x_{1}-x_{2} ight)=0 \\ \ddot{x}_{2}+\dot{x}_{2}-2\left(x_{1}-x_{2} ight)=f(t)^{\prime}\end{array}, f(t)=...
-
Find all possible I/O equations. \(\left\{\begin{array}{l}\ddot{x}_{1}+\dot{x}_{1}+\frac{1}{3}\left(x_{1}-x_{2} ight)=f_{1}(t) \\ \ddot{x}_{2}-\frac{1}{3}\left(x_{1}-x_{2} ight)=f_{2}(t)\end{array},...
-
Find all possible I/O equations. \(\left\{\begin{array}{l}\ddot{x}_{1}+2 \dot{x}_{1}+\frac{3}{5}\left(x_{1}-x_{2} ight)=f_{1}(t) \\ 3 \ddot{x}_{2}+\dot{x}_{2}-\frac{3}{5}\left(x_{1}-x_{2}...
-
1. how transfer pricing can be used to minimize taxes in a multinational corporation. Include a short numerical illustration. 2. wHAT are the arguments for and against the international convergence...
-
On 1 July 2021, Croydon Ltd leased ten excavators for five years from Machines4U Ltd. The excavators are expected to have an economic life of 6 years, after which time they will have an expected...
-
A resistance array is connected to a load resistor R and a 9-V battery as shown in Fig. 4.151. (e) Find the value of R such that vo = 1.8 V. (f) Calculate the value of R that will draw the maximum...
-
Calculate the capacitor voltage for t 0 for each of the circuits in Fig. 7.106. (a) (b) 4 2 20 V 2 F 2 A 12 V 3
-
Two loads connected in parallel draw a total of 2.4 kW at 0.8 pf lagging from a 120-V rms, 60-Hz line. One load absorbs 1.5 kW at a 0.707 pf lagging. Determine: (a) The pf of the second load, (b) The...
-
The chief goal of the private sector is effciency.Why? The primary focus of the public sector is equity. Why? It is quite possible to be highly effcient yet ineffective. It is also possible to be...
-
Why is healthcare reform such a contentious issue in the United States? Why have public and private efforts been unsuccessful in fully addressing the challenge of affordable health care? What role(s)...
-
Drawing on economic theory, what kinds of market failure underlie the worlds most pressing problems? Examine three examples: hunger, groundwater contamination, and literacy.
Study smarter with the SolutionInn App