Question

student connects three 1.5 V batteries in series. She measures the total voltage across
cell and the batteries with a voltmeter. The student was expecting 4.5V but got only 1.5 V Suggest what the student could have done wrong

Answer 1

Answer:

Wired in series the voltage will be 4.5 volts. If they are wired in parallel the voltage will be 1.5 and if the batteries are all of equal miliamperes the current capabilities will be three times that of a single battery. If the current rating of the three batteries are not the same the available current will be somewhat different and less than the calculated total of all three. This will put a strain on the battery with the highest rating since it will be supplying the current until the batteries equalize.

Explanation:

Answer 2

Answer:

voltmeter must be always connected in parallel across the battery as where potential difference is to measure....not across the cell......