Question 1

What is an electric circuit?

Accepted Answer

An electric circuit is a closed loop or pathway through which electric current can flow. It consists of various components such as resistors, capacitors, inductors, and sources of electrical energy (like batteries or generators). Circuits allow the controlled movement of electrons, enabling the transfer of electric energy to perform tasks like powering devices and generating light.

Question 2

What is the difference between series and parallel circuits?

Accepted Answer

Series and parallel circuits are two common ways of connecting components within an electric circuit. Series Circuit: In a series circuit, components are connected end-to-end, forming a single pathway for the current. The same current flows through all components, and the voltage is divided among them. If one component fails or is disconnected, the entire circuit is interrupted. Parallel Circuit: In a parallel circuit, components are connected across common points, creating multiple paths for the current. Each component gets the full voltage, but the current divides among them. If one component fails, the others can continue to function.

Question 3

What is Ohm's Law?

Accepted Answer

Ohm's Law is a fundamental principle in electrical engineering that relates the current (I), voltage (V), and resistance (R) in an electric circuit. It can be expressed by the equation: V = I * R Where: V is the voltage across a component in volts (V). I is the current flowing through the component in amperes (A). R is the resistance of the component in ohms (Ω). Ohm's Law helps determine how voltage, current, and resistance are interconnected in a circuit.

Question 4

What is a resistor?

Accepted Answer

A resistor is a passive electrical component that restricts the flow of electric current. It is typically used to control the amount of current flowing through a circuit or to create voltage drops. Resistors are measured in ohms (Ω) and are represented by a color code that indicates their resistance value. They come in various shapes and sizes and are often used in combination with other components to achieve specific electrical behaviors in circuits.

Question 5

What is a capacitor?

Accepted Answer

A capacitor is an electrical component that stores and releases electrical energy in a circuit. It consists of two conductive plates separated by an insulating material called a dielectric. When a voltage is applied across the plates, they accumulate opposite charges, creating an electric field between them. Capacitors are used for various purposes, such as smoothing out voltage fluctuations, storing energy for quick release, and blocking direct current while allowing alternating current to pass. They are measured in farads (F).

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