Enthalpy.
The electrical energy input which is meant to turn the lights on is not 100% used (since no machine is 100% efficient.) Most of this energy is wasted as heat energy.If a substance reaches a certain temperature it gives off light and heat. When a filament light bulb reaches that temperature, it gives off both light and heat
Production theory helps us understand how firms make decisions regarding the combination of inputs to produce goods and services efficiently. It helps in analyzing factors that influence production, such as technology, resource availability, and costs. Additionally, production theory is important for understanding how changes in input quantities and technology impact output levels and firm profitability.
exogenous process is that reaction which gives out energy........during the process energy is released in form of heat or radiation....etc..example.....burning of coal is an exogenous reaction...it gives out heat energy
The fundamental elements of a computer include the central processing unit (CPU), memory (RAM), storage (hard drive or SSD), input devices (keyboard, mouse), output devices (monitor, printer), and the motherboard which connects and controls these components. These elements work together to process data and execute tasks.
When making a decision based on a third-party comparison, consider the credibility and reputation of the source, the methodology used for the comparison, the relevance of the criteria being compared, and any potential biases that may exist. It's important to critically evaluate the information provided and ensure it aligns with your specific needs and preferences.
The result (ratio) of such a comparison is called the efficiency. Note that total energy output must be equal to energy input (conservation of energy); however, what is relevant for this comparison is the useful energy output.
mechanical efficiency
Output is always greater than input. The output is multiplied from input.
Output power divided by input power, for a machine, is called the machine's efficiency. It need not be mechanical energy.
Efficiency compares the useful energy output of a system to the total energy input. It provides a measure of how well a system converts input energy into useful output energy.
Input energy is typically more useful than output energy because input energy is the initial energy put into a system to produce the desired output. Output energy, on the other hand, is the energy produced by the system after losses and inefficiencies have occurred, so it is usually less than the input energy. By maximizing input energy efficiency, we can achieve a more effective output.
The comparison between output and input work is called efficiency. It is a measure of how well a system can convert input work into useful output work. Efficiency is usually expressed as a percentage, with 100% being perfect efficiency.
The term for the comparison of input and output work of a machine is efficiency. It is typically calculated as the ratio of output work to input work, expressed as a percentage. A higher efficiency indicates that the machine is better at converting input work into useful output work.
Work input is how much work you put into a machine and work output is the work done by the machine according to how much work you put into it. You will never get more work out of a machine than you put into it. The efficiency of a machine is how much useful work you got out of the machine compared to how much you put in (expressed in a percent). Efficiency = Useful Work Output ÷ Work Input
Efficiency is output power divide by input power.
mechanical efficiency
Efficiency = ( useful energy output / total energy input ) x 100