Draw a suggestion for a measuring set-up to find the self-inductance L. Assume that L =...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Draw a suggestion for a measuring set-up to find the self-inductance L. Assume that L = 40 mH and draw the expected time course for the voltage across the inductor and the current in it. You will now use measurements to find the self-inductance of an inductor. The inductor is not ideal and must therefore be represented as an ideal inductor in series with a resistor (including will the windings in the inductor have a certain resistance). The resistance is relatively small and it is assumed that it is less than 100 N. By connecting large resistors in series with the inductor and apply a triangular voltage one can perform measurements on current and voltage in the circuit that makes one find the inductor self-inductance L. Here is a useful connection to use that the voltage measured across the inductor is: VL = L (diL/ dt) + iL RL, where VL is the voltage across the inductor, iL is the current through the inductor and RL is the resistance inside of the inductor. Find the inductors self-inductance L by starting from a triangular signal voltage with a frequency f 1 kHz, a resistor of 15 kohm and an oscilloscope. Take a picture of the voltage across the inductor and the current in it as a function of time. Explain how you can calculate L from this screen and perform the calculation. Can you see from the screen that the inductor contains a resistor? Calculate the value of this resistance. The moment you get a jump in the voltage across the inductor, you get an unexpected, short-lived one interference with the signal. Show an enlarged section of this disorder. Can you explain what this is coming from? The inductor is not shielded from environmental influences. Can you see any electrical noise on the voltage across the inductor? Check the inductor inductance L when measuring with an RLC meter. Draw a suggestion for a measuring set-up to find the self-inductance L. Assume that L = 40 mH and draw the expected time course for the voltage across the inductor and the current in it. You will now use measurements to find the self-inductance of an inductor. The inductor is not ideal and must therefore be represented as an ideal inductor in series with a resistor (including will the windings in the inductor have a certain resistance). The resistance is relatively small and it is assumed that it is less than 100 N. By connecting large resistors in series with the inductor and apply a triangular voltage one can perform measurements on current and voltage in the circuit that makes one find the inductor self-inductance L. Here is a useful connection to use that the voltage measured across the inductor is: VL = L (diL/ dt) + iL RL, where VL is the voltage across the inductor, iL is the current through the inductor and RL is the resistance inside of the inductor. Find the inductors self-inductance L by starting from a triangular signal voltage with a frequency f 1 kHz, a resistor of 15 kohm and an oscilloscope. Take a picture of the voltage across the inductor and the current in it as a function of time. Explain how you can calculate L from this screen and perform the calculation. Can you see from the screen that the inductor contains a resistor? Calculate the value of this resistance. The moment you get a jump in the voltage across the inductor, you get an unexpected, short-lived one interference with the signal. Show an enlarged section of this disorder. Can you explain what this is coming from? The inductor is not shielded from environmental influences. Can you see any electrical noise on the voltage across the inductor? Check the inductor inductance L when measuring with an RLC meter.
Expert Answer:
Related Book For
Physics
ISBN: 978-0077339685
2nd edition
Authors: Alan Giambattista, Betty Richardson, Robert Richardson
Posted Date:
Students also viewed these electrical engineering questions
-
A solenoid with inductance L = 7 mH and active resistance R = 44 is first connected to a source of direct voltage Vo and then to a source of sinusoidal voltage with effective value V = Vo. At what...
-
An RL circuit includes a voltage source vs, a resistor R = 1.8 n, and an inductor L = 0.4 H, as shown in the figure. The differential equation that describes the response of the circuit is L/R diL/dt...
-
An ideal inductor of inductance L is connected to an ac power supply, which provides an emf (t) = m sin w t. (a) Write an expression for the current in the inductor as a function of time. (b) What is...
-
what would you like to recommend to Australian government in regards to their fiscal stimulus policy for supporting covid affected society?
-
Two long, parallel wires separated by 50 cm each carry currents of 4.0 A in a horizontal direction. Find the magnetic field midway between the wires if the currents are (a) In the same direction and...
-
A Geiger tube is a radiation detector that essentially consists of a closed, hollow metal cylinder (the cathode) of inner radius ra and a coaxial cylindrical wire (the anode) of radius rb (Fig....
-
Find the critical value f0.01 for F2,5.
-
Warrens Sporting Goods Store sells a variety of sporting goods and clothing. In a back room, Warrens has set up heat transfer equipment to personalize T-shirts for Little League teams. Typically,...
-
Bob's is a retail chain of specialty hardware stores. The firm has 1 8 , 0 0 0 shares of stock outstanding that are currently valued at $ 8 2 a share and provide a rate of return of 1 3 . 2 percent....
-
Top Quality ApplianceLong Beach has just purchased a franchise from Top Quality Appliance (TQA). TQA is a manufacturer of kitchen appliances. TQA markets its products via retail stores that are...
-
Which of the following would not be considered a service department in a hospital? A.Security. B.Cardiac Care. C.Patient Records. D.Accounting. E.Human Resources
-
Nancy Clancey has a large consulting practice. New clients are required to pay one-half of the consulting fees up front. The balance is paid at the conclusion of the consultation. How does Nancy...
-
Esquire Company needs to acquire a molding machine to be used in its manufacturing process. Two types of machines that would be appropriate are presently on the market. The company has determined the...
-
Consider the following two bonds: $ 1 0 0 0 Par, Disney, 5 % Coupon Due 2 / 1 4 / 3 4 quoted at 1 0 0 $ 1 0 0 0 Par, MBTA * , 4 . 2 5 % Coupon Due 2 / 1 4 / 3 4 quoted at 1 0 0 At what Tax Rate will...
-
Choose a day between the release of the coursework and the submission (i.e. the day you answer this question or a previous working day). Choose two US company stock, the option prices and other data...
-
Jazz Corporation owns 1 0 percent of the Vanderbilt Corporation stock. Vanderbilt distributed a $ 2 4 , 0 0 0 dividend to Jazz Corporation. Jazz Corporation's taxable income ( loss ) before the...
-
Kim Lee, a citizen and tax resident of South Korea, came to the U.S. in F-1 immigration status on January 01, 2023. He is a full-time student at a local university and started working at the...
-
The Strahler Stream Order System ranks streams based on the number of tributaries that have merged. It is a top-down system where rivers of the first order are the headwaters (aka outermost...
-
A fellow student says that there is never an electric field inside a conductor. Do you agree? Explain.
-
A thin, flat sheet of charge has a uniform surface charge density (/2 on each side). (a) Sketch the field lines due to the sheet. (b) Sketch the field lines for an infinitely large sheet with the...
-
If a leaf is to maintain a temperature of 40C (reasonable for a leaf), it must lose 250 W/m 2 by transpiration (evaporative heat loss), That the leaf also loses heat by radiation, but we will neglect...
-
Determine the slope at \(A\) and the displacement of at point \(C\) of the simply supported beam. The modulus of elasticity of the wood is \(E=10 \mathrm{GPa}\). A 3 kN 3 kN -1.5 m-1.5 m- 3 m. 100 mm...
-
The simply supported beam is made of A-36 steel and is subjected to the loading shown. Determine the displacement of its center \(C\). Take \(I=0.1457\left(10^{-3} ight) \mathrm{m}^{4}\). 20 kN 4...
-
The \(\mathrm{W} 10 \times 30\) cantilever beam is made of A-36 steel and is subjected to unsymmetrical bending caused by the applied moment. Determine the displacement of the centroid at its end...
Study smarter with the SolutionInn App