Frequently Asked Questions

AC (Alternating Current) and DC (Direct Current) are two types of electrical current. AC changes direction periodically, making it suitable for power distribution. DC flows in one direction, commonly used in batteries and electronic devices. Understanding the difference is vital for selecting the right power source.

Ohm's Law is a fundamental principle in electronics that states the relationship between voltage (V), current (I), and resistance (R). It can be expressed with the formula V = I × R. This law is essential for analyzing electrical circuits and understanding how they function.

Resistance is a measure of the opposition to the flow of electric current, measured in ohms (Ω). It determines how much current will flow for a given voltage. High resistance means less current flows, while low resistance allows more current to pass through.

Current refers to the flow of electric charge in a circuit, measured in amperes (A). It represents the rate at which charge is flowing. Current is essential for the operation of electrical devices, as it powers them by providing the necessary energy.

Voltage, measured in volts, is the electrical potential difference between two points. It is the force that pushes electric charges through a circuit. Understanding voltage is crucial for working with electrical systems, as it determines how much energy is available to do work.