Variable capacitors can store different amounts of electricity and are commonly used in radios to tune into different stations. They come in two types, air and vacuum, and can be controlled mechanically or electronically. The main advantage is the ability to adjust the capacitor without needing a different one for each frequency, but the drawback […]
A static VAR compensator (SVC) is an electrical device that regulates voltage and stabilizes the grid in high voltage electricity transmission systems. It quickly returns reactive power to the source and can handle a larger power capacity than other options. A static VAR compensator (SVC) is an electrical device that is part of a flexible […]
A variable speed pulley system uses lubricated chains to adapt to different functions. It is weightless, reduces friction and force required, and has movable flanges to control speed. It is inexpensive and has an almost infinite speed range. A variable speed pulley allows you to use pulleys at different speeds. This means that the basic […]
A variable displacement pump can generate electrical energy or apply mechanical force to fluid flow. Hydraulic motors based on this design have a central axle, piston cylinder, and circular plate. The pump’s circular pistons displace different amounts of fluid depending on their horizontal position, and the compensator adjusts the swashplate angle for maximum efficiency. A […]
Variable torque is when a motor directs power to a load as needed, reducing power when too much is detected. It is found in cars, hybrid cars, snowmobiles, ATVs, and aircraft. It saves fuel and provides cleaner emissions. Variable torque is described as the ability of a motor to direct power in a limited way […]
A resistor restricts current flow; a variable resistor allows for finer control. Rheostats handle entire circuit currents, while potentiometers function as voltage dividers for precise control. In an electrical circuit, a resistor acts as a fixed restriction on the flow of current without completely turning the current on or off. A variable resistor allows for […]
Instance variables are unique data in object-oriented programming that belong to each object. They can have different values and visibility properties, and are distinct from static variables. Inheritance affects access to instance variables, with private variables restricted to their respective classes and protected variables visible to both superclass and subclass. An instance variable is a […]
Value investing involves selecting undervalued stocks that are believed to eventually trade at a higher value. Equity funds, overseen by portfolio managers, can be tailored to include only small, mid, or large cap value investments. Stocks represent a large umbrella in the financial markets in which categories, subcategories, and investment styles are assigned. One such […]
An equity fund is a portfolio of dividend-paying shares, with the objective of generating a constant level of current income while minimizing risk. It can be a mutual fund or ETF, and investors can create custom portfolios. Conservative investors tend to favor large, established companies, while specialized funds may focus on a particular industry or […]
Variable pay is a form of compensation that changes with an employee’s performance or activity, often in addition to a fixed salary. It can include hourly wages, bonuses, and one-time rewards, and is used to incentivize employees and reduce overhead costs for companies. Remuneration represents payment or compensation given to an individual for general employment […]
Variable cost per unit is the cost associated with producing a good or service that changes frequently, and is used in manufacturing to incorporate raw material costs. It is used to determine the unit price of manufactured items and can be risky or profitable depending on market conditions. Potential investors are concerned about variable costs […]
Expenses can be fixed or variable, with factors such as weather, demand, and cost affecting the latter. Budgets for households and businesses can include both types of expenses, with manufacturing costs being particularly complex. Marginal costs are the cost of producing one unit and can vary depending on whether fixed costs have been covered. Budget […]
Variable ratio writing involves writing two option contracts using a fixed number of shares of an underlying security, with a common approach being a two-to-one strategy. This strategy requires planning and precision and should only be used when the underlying security has limited volatility. Variable ratio writes are an investment strategy that involves writing two […]
