Nate Electrical Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

What occurs when two batteries are connected in series?

The current capacity increases while the voltage remains constant

The total resistance in the circuit decreases

The voltage increases while the current capacity remains the same

When two batteries are connected in series, the individual voltages of each battery combine to produce a higher total voltage for the circuit. This increase occurs because, in a series connection, the positive terminal of one battery is connected to the negative terminal of the other, effectively adding their voltages together.

For example, if one battery provides 1.5 volts and another 1.5 volts, the total voltage supplied to the circuit becomes 3 volts. This means that while the voltage has increased, the current capacity or the amp-hour rating of the batteries remains the same as that of the single battery with the lowest capacity in the series.

In essence, series connections are characterized by increased voltage but unchanged current capacity. This understanding is fundamental in electronics and electrical engineering, as it affects how circuits are designed and how components are selected based on voltage requirements.

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The batteries will discharge faster

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