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What is the most common type energy loss in a electrical device?

thermal/heat energy


How many kilowatts a hour does a dam produce?

Most power plants produce several Megawatts of power. A Megawatt is one million watts.


What is electrical engery changed to?

It can be converted to most other types of energy.


How much energy does nuclear energy produce?

A heavy nucleus is split by a neutron which can pass the Coloumb barrier because of its lack of electrical charge. Nuclear fission releases energy . During each fission reaction some mass is converted to energy with accordance to E=mc2 The heat energy is usually carried by the fission products. It heats water or another moderator (eg. carbon dioxide) which is then used to heat water to turn it to steam, which drives a turbine which drives a generator which produces electricity because of electromagnetic induction. On average, each fission event releases approx. 200 MeV of energy, while most oxidation reactions (eg. burning fossil fuels) release only few eV per event. 200 MeV = two hundred million eV eV = 1.60217653(14)×10−19 J Nuclear fusion releases energy by binding light nuclei together, rather than separating them. It is vital to notice that only fusion of light nuclei is exothermic (it releases energy), while fusion of heavy nuclei is endothermic (it "consumes" energy). Fusion also releases energy. It is even more energetic than fission, but harder to achieve. It occurs naturally in stars.


Is it diesel generators is DC or AC generators?

Most diesel generators are designed to produce alternating current (AC) electricity. However, there are some diesel generators that can also produce direct current (DC) electricity with the help of rectifiers or inverters.