What happens if you double the number of batteries used in a circuit? (Assume all of the batteries
A.
The current doubles only.
o
B.
The voltage doubles only.
C.
The current decreases.
D
The voltage decreases.
0
E.
The voltage and current doubles.
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Explanation:

Series

If two 1.5 volt batteries are connected positive to negative, the total voltage is 3.0 volt. This is because batteries in series produce a voltage equal to the number of batteries multiplied by the voltage of each individual battery

Parallel

The word parallel means "alongside each other". When batteries are placed in parallel all the positive terminals are joined together with a single wire to one part of the circuit, and all the negative terminals are joined with a single wire to the rest of the circuit

Remember the voltage increases when batteries are in series, but with batteries in parallel this is not the case. When two or more batteries are placed in parallel, the voltage in the circuit is the same as each individual battery. That is two, three, four or more 1.5 volt batteries in parallel will produce a voltage of 1.5 Volts

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