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

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.

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

In the circuit shown in Fig. E26.49, C = 5.90 mF, Ԑ = 28.0 V, and the emf has negligible resistance. Initially, the capacitor is uncharged and the switch S is in position 1. The switch is then moved to position 2 so that the capacitor begins to charge. (a) What will be the charge on the capacitor a long time after S is moved to position 2? (b) After S has been in position 2 for 3.00 ms, the charge on the capacitor is measured to be 110 mC What is the value of the resistance R? (c) How long after S is moved to position 2 will the charge on the capacitor be equal to 99.0% of the final value found in part (a)?

A particle with mass1.81×10-3kgand a charge of has1.22×10-8C, at a given instant, a velocityV=(3.00×104m/s).What are the magnitude and direction of the particle’s acceleration produced by a uniform magnetic fieldB=(1.63T)i+(0.980T)j^?

Lightning Strikes. During lightning strikes from a cloud to the

ground, currents as high as 25,000 A can occur and last for about 40 ms.

How much charge is transferred from the cloud to the earth during such a

strike?

In an L-R-C series circuit, what criteria could be used to decide whether the system is over damped or underdamped? For example, could we compare the maximum energy stored during one cycle to the energy dissipated during one cycle? Explain.

Two coils are wound around the same cylindrical form. When the current in the first coil is decreasing at a rate of , the induced emf in the second coil has magnitude 1.65×10-3V. (a) What is the mutual inductance of the pair of coils? (b) If the second coil has 25 turns, what is the flux through each turn when the current in the first coil equals 1.20A? (c) If the current in the second coil increases at a rate of 0.360A/s, what is the magnitude of the induced emf in the first coil?

See all solutions

Recommended explanations on Physics Textbooks

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