Introduction to Electrical Circuits Module 26103-20 Exam Questions and Answers | Latest Version | 2024/2025 | Correct & Verified

Introduction to Electrical Circuits Module 26103-20 Exam Questions and Answers | Latest Version | 2024/2025 | Correct & Verified What is an electrical circuit? An electrical circuit is a complete path through which electric current can flow. What is the primary purpose of an electrical circuit? To transfer electrical energy to devices that convert it into useful forms like light, heat, or motion. What are the basic components of an electrical circuit? A power source, conductors, a load, and sometimes a switch or control device. What is the function of a power source in a circuit? The power source provides the energy needed to drive the electric current through the circuit. What role do conductors play in an electrical circuit? 2 Conductors allow electric current to flow from the power source to the load and back. What is the function of a load in a circuit? The load is a device that consumes electrical energy, such as a light bulb, motor, or heater. What is the role of a switch in a circuit? A switch controls the flow of electricity by opening or closing the circuit. What does it mean when a circuit is "closed"? A closed circuit means there is a complete path for current to flow, and the circuit is operational. What happens when a circuit is "open"? In an open circuit, the path for current flow is interrupted, so no current flows through the circuit. What is electrical resistance? Electrical resistance is the opposition to the flow of current in a circuit, measured in ohms. 3 What is Ohm’s Law? Ohm’s Law states that the current in a circuit is directly proportional to the voltage and inversely proportional to the resistance (I = V/R). What is the function of a resistor in a circuit? A resistor limits the flow of current and reduces voltage within the circuit. What is the difference between a series circuit and a parallel circuit? In a series circuit, components are connected end-to-end, sharing the same current, while in a parallel circuit, components are connected across the same voltage source and have independent paths for current. What happens if one component fails in a series circuit? If one component fails in a series circuit, the entire