What is component 1 in figure T1?

Component 1 in figure T1 is identified as a resistor. A resistor is a passive electrical component that limits or regulates the flow of electric current in a circuit. Resistors are crucial for controlling the voltage and current levels within electronic devices, allowing the rest of the circuit to operate correctly. Specifically, they convert electrical energy into heat, which is why they often get warm when current flows through them.

Understanding the significance of resistors can help in a variety of applications, from basic electronic circuits to more complex designs. Their values are typically marked in ohms, and they follow Ohm's Law, which states that voltage is equal to current multiplied by resistance (V = IR). This is essential knowledge for anyone entering the field of ham radio, as many components in circuits rely on resistors to function properly.

The other options, such as a transistor, battery, or connector, serve entirely different functions. Transistors are active components used for amplification or switching, batteries provide power, and connectors facilitate the joining of circuit elements. Recognizing the distinct roles and characteristics of these components is vital for understanding circuit functionality.