What type of current flows steadily in one direction only?

The type of current that flows steadily in one direction only is known as direct current (DC). This is characterized by a constant voltage that moves electrons in a single direction, making it ideal for powering devices that require a consistent and stable electrical supply, such as batteries, electronics, and some specific lasers used in hair removal techniques in waxing practices.

Understanding the nature of direct current is crucial for those in the waxing industry, especially in the use of electrical equipment where uniform energy supply is important for safe and effective operation. Unlike alternating current (AC), which periodically changes direction, or other types such as surge current (which is a temporary increase in current), direct current remains stable. This consistency is what makes DC suitable for most battery-operated tools and machines, ensuring that they perform optimally without fluctuations that can affect efficacy and safety in a waxing setting.