When two 1.5-volt batteries are connected in series, they produce a total of 3 volts. In a series circuit, the positive terminal of one battery is connected to the negative terminal of the other battery. This arrangement allows the voltage of the batteries to combine, resulting in a higher total voltage. The negative terminal of the first battery is connected to the positive terminal of the second battery, and the remaining terminals are used to connect the circuit. By connecting two 1.5-volt batteries in series, the voltage adds up. This is because in a series circuit, the total voltage is the sum of the individual voltages. In this case, each battery has a voltage of 1.5 volts, so when they are connected in series, the total voltage becomes 3 volts. Series circuits are commonly used in electronic devices that require higher voltages than a single battery can provide. By connecting batteries in series, the voltage can be increased while still using standard 1.5-volt batteries. This allows for flexibility in powering various devices, such as remote controls, flashlights, or small electronic gadgets. It is important to note that while the voltage increases when batteries are connected in series, the overall capacity remains the same. In other words, connecting batteries in series does not increase the amount of charge they can hold or the duration of their use. The capacity is determined by the individual battery's specifications and remains unchanged when they are connected in series. To summarize, when two 1.5-volt batteries are connected in series, the resulting voltage is 3 volts. Series circuits are commonly used to increase voltage in electronic devices, allowing for the effective power supply of various gadgets. However, it is essential to consider the capacity of the batteries, as connecting them in series does not increase their overall capacity.

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