🔍 Key Concepts

• Electrical length vs physical length of an antenna • How inductors (coils) and resistors affect current and voltage in RF (radio frequency) circuits • Basic purpose of each component: coil, resistor, battery, conduit

💭 Think About

• Which component can make an antenna appear longer to the radio signal without changing its physical size? • Which of these components stores energy in a magnetic field and is commonly used in antenna tuning circuits? • Which components in the list are used for power supply or protection rather than for tuning antenna length?

✅ Before You Answer

• Identify which device is an inductor and recall its role in RF/antenna tuning • Eliminate any components whose main job is to supply power or limit current as heat rather than tune frequency or length • Think about which component is actually used in loading or matching antennas on small boats and vehicles