4. (II) A 1.5-V dry cell can be tested by connecting it to

Chapter 19, Problem 4

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QUESTION:

4. (II) A 1.5-V dry cell can be tested by connecting it to a low-resistance ammeter. It should be able to supply at least 22 A. What is the internal resistance of the cell in this case, assuming it is much greater than that of the ammeter?

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QUESTION:

4. (II) A 1.5-V dry cell can be tested by connecting it to a low-resistance ammeter. It should be able to supply at least 22 A. What is the internal resistance of the cell in this case, assuming it is much greater than that of the ammeter?

ANSWER:

Step 1 of 2

Emf of the dry cell

Current supplied

We take the low resistance ammeter to have no resistance.

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