Logout Open In App
Open In App
Warning: foreach() argument must be of type array|object, bool given in /var/www/html/web/app/themes/studypress-core-theme/template-parts/header/mobile-offcanvas.php on line 20

Chapter 4: Q10DQ (page 776)

The potential difference between the two terminals of an AA battery (used in flashlights and portable stereos) is 1.5 V. If two AA batteries are placed end to end with the positive terminal of one battery touching the negative terminal of the other, what is the potential difference between the terminals at the exposed ends of the combination? What if the two positive terminals are touching each other? Explain your reasoning.

Short Answer

Expert verified

If the two batteries placed end to end with the negative terminal to the positive terminal, then the total potential difference is 3 V-

If the two batteries placed end to end with the positive terminal to the positive terminal, then the total potential difference is 0 V-

In this case, we get an equilibrium betWeen the two batteries- so, there are not electrons flow occurring-

Step by step solution

01

About The potential difference between the two terminals

The electric potential difference between points A and B, VB−VA is defined to be the change in potential energy of a charge q moved from A to B, divided by the charge. Units of potential difference are joules per coulomb, given the name volt (V) after Alessandro Volta.

02

Determine the potential difference at the terminal at exposed end and two positive terminal touching each other

Solution:

As we know the potential difference between the two batteries gives kinetic energy to the electrons to enable them to now.

Also, we know that the electrons move for the high potential plate to the low potential plate- If the two batteries placed end

to end with the negative terminal to the positive terminal, then the total potential difference is 3 V. If the two batteries

placed end to end with the positive terminal to the positive terminal, then the total potential difference is 0 V- In this case,

we get an equilibrium between the two batteries- 80, there are not electrons flow occurring-

Therefore ,

If the two batteries placed end to end with the negative terminal to the positive terminal, then the total potential difference is 3 V-

If the two batteries placed end to end with the positive terminal to the positive terminal, then the total potential difference is 0 V-

In this case, we get an equilibrium betWeen the two batteries- so, there are not electrons flow occurring-

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Question: A conducting sphere is placed between two charged parallel plates such as those shown in Figure. Does the electric field inside the sphere depend on precisely where between the plates the sphere is placed? What about the electric potential inside the sphere? Do the answers to these questions depend on whether or not there is a net charge on the sphere? Explain your reasoning.

Electrons in an electric circuit pass through a resistor. The wire on either side of the resistor has the same diameter.(a) How does the drift speed of the electrons before entering the resistor compare to the speed after leaving the resistor? (b) How does the potential energy for an electron before entering the resistor compare to the potential energy after leaving the resistor? Explain your reasoning.

Two copper wires with different diameter are joined end to end. If a current flow in the wire combination, what happens to electrons when they move from the large diameter wire into the smaller diameter wire? Does their drift speed increase, decrease, or stay the same? If the drift speed change, what is the role the force that causes the change? Explain your reasoning.

BIO Transmission of Nerve Impulses. Nerve cells transmit electric

signals through their long tubular axons. These signals propagate due to a

sudden rush of Na+ions, each with charge +e, into the axon. Measurements

have revealed that typically about 5.6×1011Na+ions enter each meter of the

axon during a time of . What is the current during this inflow of charge

in a meter of axon?

A particle with charge-5.60nCis moving in a uniform magnetic fieldrole="math" localid="1655717557369" B=-(1.25T)k^

The magnetic force on the particle is measured to berole="math" localid="1655717706597" F⇀=-(3.40×10-7N)i^-(7.40×10-7N)j^ (a) Calculate all the components of the velocity of the particle that you can from this information. (b) Are there
components of the velocity that are not determined by the measurement of the force? Explain. (c) Calculate the scalar productv⇀֏F⇀. What is the angle between velocity and force?
See all solutions

Recommended explanations on Physics Textbooks

Measurements

Read Explanation

Translational Dynamics

Read Explanation

Physics of Motion

Read Explanation

Nuclear Physics

Read Explanation

Mechanics and Materials

Read Explanation

Quantum Physics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free