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What else can I help you with?
List several examples of how electrical energy and light energy are useful to you?
Electrical energy and light energy are useful to me in a variety of ways from the machines used to make the food you eat to the energy used to purify the water you drink. The clothes you wear are even dyed different colors from the light energy alone.
How a digital electric more useful than an analog electric meter?
in a digital meter you get a digital value of your measurement. but in analog meter you have to check the position of the pin along the scale and find out the value.
What is an electrical knife?
I have an electric knife. They are very useful when cutting things like roasts, turkeys and hams. Here is a site on electric knives http://www.amazon.com/b?ie=UTF8&node=3737391
What is the main purpose of a transformer?
step up transformer output gives the high voltage which is useful for transmiission of electricity
What is power transmission?
Power transmission is the movement of energy from its place of generation to a location where it is applied to performing useful work.
What is the relationship between efficiency useful energy output and total energy output?
Efficiency is the ratio of useful energy output to total energy input. A higher efficiency indicates that a greater proportion of the total energy input is being converted into useful energy output. Therefore, as efficiency increases, the amount of useful energy output relative to total energy output also increases.
What is the efficiency of a motor that converts 100J of electric energy into 70j of useful energy?
The efficiency of the motor can be calculated by dividing the useful energy output by the total energy input and multiplying by 100. In this case, the efficiency would be 70J (useful energy output) divided by 100J (total energy input) = 0.7 or 70%.
Total energy input equals equals the useful energy output plus?
Efficiency = ( useful energy output / total energy input ) x 100
What does efficiency compare energy output with?
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.
What is the main energy change in a electric motor?
The main energy change in an electric motor is from electrical energy into mechanical energy. The motor converts electrical energy supplied to it into rotational mechanical energy, which drives the motor's output shaft to perform useful work.
What is the useful energy output and waste energy output?
Useful energy output refers to the energy that is converted into a form that can directly be used for a desired purpose, such as electricity generated from a power plant. Waste energy output, on the other hand, refers to the energy that is not converted into a useful form and is lost, typically as heat or noise, during the energy conversion process.
What is the useful and wasted energy in an electric heater a television an electric kettle headphones Thanks for your help?
In an electric heater, the useful energy is the heat generated for warming the room, while the wasted energy is the heat lost through the surroundings. In a television, the useful energy is the light and sound produced for viewing and listening, while wasted energy can come in the form of heat generated by the device. In an electric kettle, the useful energy is the heat used to boil water, while wasted energy can be heat lost through the kettle's exterior. In headphones, the useful energy is the sound produced for listening, while any energy lost through heat or vibration could be considered wasted.
Does an electric can opener convert electric energy sound energy?
Not likely - any machine wastes some energy; that would reduce the useful output energy.
What is the ratio of useful energy output to the total energy input?
The ratio of useful energy output to total energy input is known as the energy efficiency. It is calculated by dividing the useful energy output by the total energy input and multiplying by 100 to express it as a percentage. A higher energy efficiency percentage indicates a more effective use of energy resources.
How is energy efficiency determined?
Energy efficiency is typically determined by the ratio of useful energy output to total energy input in a system. It can be quantified by calculating the efficiency percentage, which is the amount of useful energy produced divided by the total energy input multiplied by 100. The higher the percentage, the more energy efficient a system is.
Is an electric toothbrush input energy equal yo useful output energy?
To my knowledge, the input energy would be less than the output due to the fact that no machine is 100% efficient. There would be some energy lost as a result of friction or some other such force that hinders efficiency.
What is the name of the amount of useful energy you get from a system?
That may refer to the system's efficiency (which is formally the amount of useful output power divided by the amount of input power).
