Question: 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

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?

FIGURE EX28.21:

A variable resistor R is connected across the terminals of a battery.

Step by Step Solution

★★★★★

3.43 Rating (162 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

We have to find the emf and internal resistance of the battery Real batteries always have ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Physics Scientists and Engineers Questions!

A 470 F capacitor is connected across the terminals of a battery of e.m.f. 9 V. Calculate the charge on the plates of the capacitor.

What are the emf and internal resistance of the battery in FIGURE P28.46? Open: 1.636 A A Closed: 1.565 A 50 100 FIGURE P28.46

A single 2.0-F capacitor is connected across the terminals of a 60-Hz voltage source, and a current of 2.0 mA is measured on an ac ammeter. What is the capacitive reactance of the capacitor?

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-...

A battery has an emf Є and internal resistance r. A variable load resistor R is connected across the terminals of the battery. (a) Determine the value of R such that the potential difference...

An external resistor R is connected between the terminals of a battery. The value of R varies. For each R value, the current I in the circuit and the terminal voltage V ab of the battery are...

To understand the concept of electromotive force and internal resistance; to understand Part H voltmeter. the processes in one-loop circuits; to become familiar with the use of the ammeter and In...

Learning Goal: To understand the concept of electromotive force and internal resistance; to understand Part I the processes in one-loop circuits; to become familiar with the use of the ammeter and...

Learning Goal: To understand the concept of electromotive force and internal resistance; to understand View Available Hint(s) the processes in one-loop circuits; to become familiar with the use of...

D Learning Goal: O To understand the concept of electromotive force and internal resistance; to understand the processes in one-loop circuits; to become familiar with the use of the ammeter and D...

Write a balanced equation for the synthesis of sn -1- stearoyl -2- oleoylglycerophosphorylserine, starting with glycerol, the fatty acids involved, and serine.

Make the journal entry necessary to record the sale of 175 books at $29 per book. Ninety-five of the books were sold for cash, and 80 were sold on credit.

What is a one-group pre-testpost-test design?

How do the tax consequences of S corporation liquidating distributions differ from the tax consequences of S corporation operating distributions at both the corporate and shareholder levels?

An old-fashioned slide projector needs to create a 98-cm high image of a 2.0-cm-tall slide. The screen is 300 cm from the slide. a. What focal length does the lens need? Assume that it is a thin...

A lightbulb is 3.0 m from a wall. What are the focal length and the position (measured from the bulb) of a lens that will form an image on the wall that is twice the size of the lightbulb?

In recent years, physicists have learned to create metamaterials engineered materials not found in natur with negative indices of refraction. Its not yet possible to form a lens from a material with...

QUESTION 25 Cunto debi usted haber depositado en una cuenta de ahorros, que pagaba un 8% de inters compuesto mensual, hace 25 aos para poder recibir una anualidad de $2,500 mensuales por igual...

5) Machka Food Corporation is expected to generate the following free cash flows over the next four years: Year 1 FCF($Million) 26 2 36 3 56 4 46 After then, the free cash flows are expected to grow...

9 A borrower is purchasing a property for $180,000 and can choose between two possible loan alternatives. The first is a 90% loan for 25 years at 9% interest and 1 point and the second is a 95% loan...