Fundamentals of Circuit Components

What is commonly used to represent a power source in circuit diagrams?

• A circle with plus/minus inside

• A square with a diagonal line

• A triangle pointing right

• A zigzag line

What does the zigzag line symbol represent in circuit diagrams?

• Capacitor

• Inductor

• Transformer

• Resistor

What unit is used to measure resistance?

• Coulomb

• Ohm

• Henry

• Farad

What is the primary function of a capacitor in a circuit?

• To resist current flow

• To generate magnetic fields

• To store electric charge

• To increase voltage

Which component is described as storing energy in the form of an electric field?

• Capacitor

• Inductor

• Transistor

• Resistor

What is the primary function of a capacitor in a circuit?

• To increase or decrease voltage

• To allow electric current to flow in one direction

• To store energy in the form of an electric field

• To store energy in the form of a magnetic field

What phenomenon occurs when capacitors and inductors work together in a circuit to send energy back and forth?

• Conduction

• Resonance

• Induction

• Transformation

Which component is used to control the flow of electric current in one direction?

• Transformer

• Transistor

• Inductor

• Diode

What is the main use of a transistor in electronic devices?

• To store energy

• To block electric current

• To convert AC to DC

• To act as a switch or amplifier

What does LED stand for?

• Linear Electron Device

• Low Energy Device

• Light Emitting Diode

• Luminous Electric Display