Question #50519
A voltmeter is connected in parallel with a variable resistance R which is in series with an ammeter and a cell. For one value of R, the meters read 0.3A and 0.9V. For another value of R the readings are 0.25A and 1.0V. What is the internal resistance of the cell?
1. 0.5ohm
2. 2 ohm
3. 1.2ohm
4. 1ohm
1
Expert's answer
2015-01-26T11:51:57-0500
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