The TV's electric efficiency depends on the type, size and brand of the Television. Typically a TV uses 80 to 400 Watts of electricity. Bigger Televisions use more energy than smaller ones. LCD's are more efficient than CRT's.
A 32 inch flat screen LED TV only uses about 6 dollars of electricity per year. It is likely to use a few cents, if that, if left on all night.
q how much eneregy does A TV waste A 9 GRAND
Heat and light energy mostly, but also various forms of radiation other than heat.
elictical energy
The light and sound emitted by the TV.
300 watts
You divide useful output energy by the input energy. Or equivalently, useful output power by input power.
pie
It uses electrical energy and produces soundIt uses electricity, in the form of volts and amperage, which equates to watts. It also receives the signal in the form of radio frequency which can contain analog or digital signals, and the newer TV's can also use the digital signal itself if it's equipped to do so.Electrical energy.
SEX energy
Energy conversion efficiency is the ratio between the useful output of an energy conversion machine and the input, in energy terms. The useful output may be electric power, mechanical work, or heat.
You divide useful output energy by the input energy. Or equivalently, useful output power by input power.
Efficiency = ( useful energy output / total energy input ) x 100
pie
It uses electrical energy and produces soundIt uses electricity, in the form of volts and amperage, which equates to watts. It also receives the signal in the form of radio frequency which can contain analog or digital signals, and the newer TV's can also use the digital signal itself if it's equipped to do so.Electrical energy.
SEX energy
Energy conversion efficiency is the ratio between the useful output of an energy conversion machine and the input, in energy terms. The useful output may be electric power, mechanical work, or heat.
tv light bulb
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.
useful energy output divided by total energy output x 100 give answer as a percentage, which is why you multiplied by 100
Example: TV. Electricity- Heat, light, sound. Useful energy transfers would be electricity- light, sound because that's what your TV actually needs, but electricity- heat would be wasted energy or a non-useful energy transfer because your TV does not need to produce heat, unless of course you can't afford central heating, but then isn't heating more important than a TV???? Summary: Useful energy transfer: The purpose of the object is fufilled by this transfer. Non-useful energy transfer: The purpose of the object is not fufilled by this transfer, and in effect, this transfer is a "side effect" of the useful energy transfer. These transfers waste energy.
The main input energy is electrical energy from mains or power sockets; that energy is transferred to light energy for the pictures, and also there is sound energy (For audio), and all these energy are converted right back at heat energy as there is always a loss of energy in every device.
Converts Electrical energy into the useful energy, light and sound. There will be some unwanted heat energy as well