A battery has an emf E and an internal resistance r. When a 5.0- resistor is connected

Question:

A battery has an emf E and an internal resistance r. When a 5.0-Ω resistor is connected across the terminals, the current is 0.5 A. When this resistor is replaced by an 11.0-Ω resistor, the current is 0.25 A. Find

(a) The emf E and

(b) The internal resistance r.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Fundamentals of Ethics for Scientists and Engineers

ISBN: 978-0195134889

1st Edition

Authors: Edmund G. Seebauer, Robert L. Barry

See More Books

Question Posted: Jul 23, 2011 04:03 PM

See More Questions

When only a resistor is connected across the terminals of an ac generator (112 V) that has a fixed frequency, there is a current of 0.500 A in the resistor. When only an inductor is connected across...
A single resistor is connected across the terminals of a battery. Which one or more of the following changes in voltage and current leaves unchanged the electric power dissipated in the resistor? (A)...
A variable resistor R is connected across the terminals of a battery. FIGURE EX28.21 shows the current in the circuit as R is varied. What are the emf and internal resistance of the battery? I (A) 6-...
Let be an arbitrary operation in Problems 5259. Describe the operation for each problem. 503 = 2; 702= 5; 901 = 8; 8 0 2 = 6;
The Royal Bank of Canada has a noncumulative class of preferred shares with a dividend rate of $1.125. Assad David owns 1,000 of these shares. If the Royal Bank declares and pays a dividend on these...
How would your answer in question 9 change if the dividend was expected to be $1.80 and the perpetual growth of the dividend 4 percent?
The salaries (in thousand dollars) of a sample of 10 employees Organize the data using the indicated type of graph. Describe any patterns. 225 410 368 310 228 298 361 159 486 296
On January 1, 2013, Plymouth Corporation acquired 80 percent of the outstanding voting stock of Sander Company in exchange for $1,200,000 cash. At that time, although Sanders book value was $925,000,...
Explain how advanced computational methods, such as Monte Carlo simulation and Bayesian networks, can be applied to improve hazard analysis accuracy and reduce uncertainty in risk assessment .
Protein synthesis in eukaryotes normally begins at the first AUG codon in the mRNA. Sometimes, however, the ribo-somes do not begin protein synthesis at this first AUG but scan past it (leaky...
The battery in Figure has negligible internal resistance. Find (a) The current in each resistor and (b) The power delivered by the battery. 3 2. 6 V 4 2 2
Consider the equivalent resistance of two resistors R1 and R2 connected in parallel as a function of the ratio x = R2/R1. (a) Show that Req = R1x/(1 + x). (b) Sketch a plot of Req as a function of x.
Tom Emory and Jim Morris strolled back to their plant from the administrative offices of Ferguson & Son Manufacturing Company. Tom is manager of the machine shop in the companys factory; Jim is...
Describe the available alternatives for conflict resolution and dispute settlement when doing business outside the home country.
Explain how Maslows needs hierarchy helps global marketers understand the benefits sought by buyers in different parts of the world.
Use the market expansion strategies matrix to explain the strategies used by the worlds biggest global companies.
Identify and explain the roles of some of the key participants involved in the exporting process.
Describe the special forms of cooperative strategies found in Asia.
What conditions must be satisfied before a court will order rectification? Under what circumstances is a court unlikely to grant such a remedy?
Selected condensed data taken from a recent statement of financial position of Morino Ltd. are as follows. MORINO LTD. Statement of Financial Position (partial) Other current assets...
Write computer programs in C++ equivalent to the programs in R in this chapter.
In the arrangement shown in Fig. 1.56 the mass of the uniform solid cylinder of radius R is equal to m and the masses of two bodies are equal to m1 and m2. The thread slipping and the friction in the...
In the system shown in Fig. 1.57 the masses of the bodies are known to be ml and m2, the coefficient of friction between the body m1 and the horizontal plane is equal to k, and a pulley of mass m is...
A uniform cylinder of radius R is spinned about its axis to the angular velocity ωo and then placed into a corner (Fig. 1.58).The coefficient of friction between the corner walls and the...
Pangasa Co. paid its annual worker accident insurance premium of $48,000 on its manufacturing facility in January. The company expects two worker accidents to happen during the year, and to make...
3. The game of baseball is often analyzed using Markov models. The state of the game can be represented by listing bases that have runners and keeping track of how many outs there are. There are...
Thornton Electronics currently produces the shipping containers it uses to deliver the electronics products it sells. The monthly cost of producing 9,300 containers follows. Unit-level materials...

A battery has an emf E and an internal resistance r. When a 5.0- resistor is connected

Question:

Step by Step Answer:

a b The equations for ...View the full answer

Fundamentals of Ethics for Scientists and Engineers

Students also viewed these Electricity and Magnetism questions