Which of the following is an example of a digital logic gate?

A digital logic gate is a fundamental building block of digital circuits that perform logical operations on one or more binary inputs to produce a single binary output. The NOR gate is a type of digital logic gate that outputs true or high (1) only when both of its inputs are false or low (0). It is commonly used in various digital applications, including arithmetic and logical operations, making it a key element in designing electronic systems, particularly in integrated circuits.

In contrast, the other options listed do not serve as logic gates. A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction, primarily used in power applications. A capacitor stores electrical energy as an electric field, mainly used in filtering and energy storage applications. An inductor, on the other hand, stores energy in a magnetic field when electrical current passes through it, commonly utilized in filtering and tuning circuits. None of these components are involved in performing logical operations, distinguishing the NOR gate as the only appropriate example of a digital logic gate.