A device consisting of a number of primary voltaic cells or secondary cells connected in series to obtain a desired DC voltage is called a ...

A device consisting of a number of primary voltaic cells or secondary cells connected in series to obtain a desired DC voltage is called a ...

• A. Capacitor
• B. Battery
• C. Conductor
• D. Resistor

Answer: (B)

A device made up of several cells wired in series to obtain the required DC voltage is called a battery. It serves as a chemical energy source that delivers direct current; the voltages of the individual cells add up in series to reach the desired system voltage. This differs from a capacitor, which stores energy electrostatically and isn’t a chemical energy source. A conductor is simply a path for current, not a source of energy, and a resistor is a passive element that dissipates energy without supplying it. In a series arrangement, the current is the same through all cells, and the total voltage is the sum of each cell’s voltage, with the overall capacity (Ah) limited by the weakest cell.

A device made up of several cells wired in series to obtain the required DC voltage is called a battery. It serves as a chemical energy source that delivers direct current; the voltages of the individual cells add up in series to reach the desired system voltage. This differs from a capacitor, which stores energy electrostatically and isn’t a chemical energy source. A conductor is simply a path for current, not a source of energy, and a resistor is a passive element that dissipates energy without supplying it. In a series arrangement, the current is the same through all cells, and the total voltage is the sum of each cell’s voltage, with the overall capacity (Ah) limited by the weakest cell.