What kind of circuits do transistors typically work with?

Transistors are versatile components used in a variety of applications, and they can effectively work with both alternating current (AC) and direct current (DC) circuits.

In DC circuits, transistors are commonly employed as switches or amplifiers. For instance, they can control the flow of current in a circuit, turning devices on and off, or amplifying weak signals. This is particularly useful in digital circuits where transistors act as the building blocks for logic gates.

In AC circuits, transistors can also function as amplifiers or oscillators. They can help in processing audio signals, radio frequencies, or other types of AC signals. Transistors in these circuits can enhance the strength of the signal or convert it into a different form, such as from AC to DC.

The design and configuration of a transistor circuit can allow it to handle both types of currents, showcasing the flexibility and multifunctionality of transistors across different electronic applications.