How to convert electric power in watts (W) to energy in joules (J).You can calculate joules from watts and seconds, but you can't convert watts to joules since watt and joule units represent different quantities.Watts to joules calculation formulaThe energy E in joules (J) is equal to t...
watt-hours, considers the light source's total power output. Lux-hours, however, describes perceived luminous intensity, in terms of how much light the human eye observes. Many calculations specify a direct correlation between the two, assuming light's wavelength to ...
It is measured in units called joules. Watts However, when it comes to electrical appliances, the term we encounter more often is 'watt', named after the Scottish engineer James Watt. A watt is a measurement of power, or the rate at which energy is consumed or generated over time. In ...
An amp (ampere) is a unit of electric current, while a watt is a unit of power. The relationship between the two depends on the voltage of the circuit in question. For example, at 120V, 1 amp equals approximately 120 watts. However, at higher voltages such as 240V, 1 amp equals appr...
That's how many joules (the standard measurement of energy) you'd get from a kilogram of mass. In theory, if you could turn about seven billion hydrogen atoms completely to energy, you'd get about one joule (that's about as much energy as a 10-watt lightbulb consumes in a tenth of...
How many times every day do you hear recorded music on theradiosonTV, in stores, inelevators—even in the street? You'd never hear music at all if it weren't forloudspeakers: electric sound-making machines. Most of the music we hear around us is played back with big loudspeakers attache...
Readings are taken during each billing period. The common billing unit is kilowatt-hour (kWh), which equals the use of one kilowatt of power for one hour or 3,600,000 joules. The Watt-Hour Meter is often referred to as an energy meter or electric meter or electricity meter, or electrica...
An electric bulb is marked 250 V - 200 V. What information do markings convey? How many joules of energy are consumed by the bulb in one hour? How long will it take for the bulb to consume one-kilowat How long does it take to do 432 joules of work with 75...
What amount of heat in joules is required to convert the water into steam at the boiling point? How many joules of energy are required to raise the temperature of 50 grams of water from -100 degree C to 120 degree C? Calculate ...
Yes, watt-hours is a measure of energy, just like kilowatt-hours. Multiply by 3600 and you get watt-seconds, which is also known as Joules. As long as we are in the prelude, I might also mention that since the charge in a capacitor is Q=CV that a battery can be rated in far...