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4. (II) A 1.5-V dry cell can be tested by connecting it to
Chapter 19, Problem 4(choose chapter or problem)
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?
Questions & Answers
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.