A Wheatstone bridge is used to measure resistance. Show that in this circuit if the current flowing
Question:
Show that in this circuit if the current flowing through rg is zero then r4 = r2r3=r1. (To operate the device, put the unknown resistance at r4. At rg is a meter that shows the current. We vary the three resistances r1, r2, and r3-typically they each have a calibrated knob-until the current in the middle reads 0. Then the equation gives the value of r4.)
Transcribed Image Text:
T3 ri T4 12
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 53% (13 reviews)
Kirchoffs Current Law applied to the node where r 1 r 2 a...View the full answer
Answered By
Charles mwangi
I am a postgraduate in chemistry (Industrial chemistry with management),with writing experience for more than 3 years.I have specialized in content development,questions,term papers and assignments.Majoring in chemistry,information science,management,human resource management,accounting,business law,marketing,psychology,excl expert ,education and engineering.I have tutored in other different platforms where my DNA includes three key aspects i.e,quality papers,timely and free from any academic malpractices.I frequently engage clients in each and every step to ensure quality service delivery.This is to ensure sustainability of the tutoring aspects as well as the credibility of the platform.
4.30+
2+ Reviews
10+ Question Solved
Related Book For
Question Posted:
Students also viewed these Linear Algebra questions
-
The Wheatstone Bridge The Wheatstone bridge is a device used to measure an unknown resistance RA by comparing it with known resistances R1, R2, and R3.5 The circuit diagram is shown in Fig. 3.4.3....
-
The following table summarizes the mean returns and the standard deviations for several types of securities over the time period 1926-2002. a. If standard deviation is used to measure the risk...
-
An ammeter that displays three digits is used to measure current in milliamperes.
-
Austin Limited is trying to determine the value of its ending inventory as of February 28, 2019, the companys year-end. The following transactions occurred, and the accountant asked your help in...
-
Because market interest rates were near all-time lows at 4% per year, a hand tool company decided to call (i.e., pay off) the high-interest bonds that it issued 3 years ago. If the interest rate on...
-
Fiduciary means having to do with a confidence or trust; a person who holds something in trust. Determine whether the following definitions are stipulative, lexical, precising, theoretical, or...
-
Which statement is false with respect to the PCAOB? a. PCAOB issues standards describing auditor's attestation requirements. b. D.W. Squires was a former chief auditor of PCAOB. c. PCAOB is a...
-
Accounting for Goodwill On July 1, 2010, Brandon Corporation purchased Mills Company by paying $250,000 cash and issuing a $150,000 note payable. At July 1, 2010, the balance sheet of Mills Company...
-
Serotta Corporation is planning to issue bonds with a face valueof $410,000 and a coupon rate of 12 percent. The bonds mature intwo years and pay interest quarterly every March 31, June 30,Septembe 0...
-
A designer is planning orders for its annual limited-edition ornament. Demand has been forecast to be normally distributed, with a mean of 20,000 and a standard deviation of 8,000. Each ornament...
-
Use the computer to solve the two problems that opened this chapter. (a) This is the Statics problem. 40h + 15c = 100 25c = 50 + 50h (b) This is the Chemistry problem. 7h = 7j 8h + 1i = 5j + 2k 1i =...
-
Consider this traffic circle. This is the traffic volume, in units of cars per five minutes We can set up equations to model how the traffic flows. (a) Adapt Kirchhoff's Current Law to this...
-
Mitch cares only about how much he can write. Because a pen will write 7 miles of text and a pencil will write 35 miles of text, Mitch considers them perfect 5-to-1 substitutes. If the price of pens...
-
The statement from Jackson County Bank on December 31 showed a balance of $27,541. A comparison of the bank statement with the Cash account revealed the following facts. 1. The bank collected a note...
-
A man is running on a straight road perpendicular to a train track and away from the track at a speed of 11 m/s. The train is moving with a speed of 22 m/s with respect to the track. What is the...
-
Suppose the following information was taken from the 2025 financial statements of FedEx Corporation, a major global transportation/delivery company. (in millions) 2025 2024 Accounts receivable...
-
Kailina has a 150 pound box of red vines (68 kg) and Michelle wants them! One day, while over at Kailina's watching the Princess Collection on Disney+, when Kailina leaves the room to answer a phone...
-
QYZ Company is developing an application to produce a payroll report. The application has a list of employees stored in a file named Employee.txt. The file contains information about name, gender,...
-
Suppose that the Q-P demand curve for a commodity is Q = 100/P. (a) Graph the Q-P curve. (b) Determine the optimum revenue.
-
You deposit $10,000 in a savings account that earns 7.5% simple interest per year. What is the minimum number of years you must wait to double your balance? Suppose instead that you deposit the...
-
In Exercise 10, what is the expected number of generations until a short person has a tall descendant? Suppose we want to know the average (or expected) number of steps it will take to go from state...
-
In Exercise 11, if the pinon nut crop is fair one year, what is the expected number of years until a good crop occurs? Suppose we want to know the average (or expected) number of steps it will take...
-
In Exercise 12, starting from each of the other junctions, what is the expected number of moves until a robot reaches junction 4? Suppose we want to know the average (or expected) number of steps it...
-
The following information on current assets and current liabilities is for Belkin Company. Cash Accounts receivable 3,336 Inventory 5,200 $ 1,300 Prepaid expenses Accounts payable Other current...
-
. Chessington Fitness Equipment produces a dumbbell set with a selling price of $1,000 per set. The costs to produce each set include: direct materials, $400; direct labor, $100, and variable...
-
Cost Flow Relationships The following information is available for the first month of operations of Bahadir Company, a manufacturer of mechanical pencils: Sales $792,000 Gross profit 462,000 Cost of...
Study smarter with the SolutionInn App