So, in short, fluorescent lights make their energy in a three-step process: Electrodes take electrical energy from the power supply and generate moving electrons. The moving electrons collide with mercury atoms in the tubes to make ultraviolet light. The white phosphor coating of the tubes convert...
We dip the two electrodes into the solution and connect them up into a circuit so the copper becomes the positive electrode (or anode) and the brass becomes the negative electrode (or cathode). When we switch on the power, the copper sulfate solution splits into ions (atoms with too few...
Explain the difference between work, energy and power. Give their expression and the units in which these are measured.
Energy: Energy is defined as the capability of a body or a source to do work. Power: The product of the work and the inverse of the time in which the work is done.Answer and Explanation: Work can be defined as the energy dissipated to apply a force to...
Using map algebra, the logit model generates a map of the likelihood of wind energy development. Locations that would most benefit from augmented electrical transmission are also identified. This form of empirical locational analysis can thus help predict and guide wind power development where spatial...
Explain how voltage current and resistance could interact to give a person a severe electrical shock if he or she touched an electrical wire in the wrong way. Do superconductors have electric power? Explain. What causes electric shock - current or voltage?
Energy. Energy and Work Energy – the ability to do work Work is a transfer of energy Energy is also measured in Joules. Energy Transformation *Going from one energy to another. Warm Up 9/19 What would require more power, running a mile or walking a mile? Which of these is are exa...
was born that the Universe is filled for the most part not with ordinary matter, but with some “dark energy,” which has special properties. No one knows what is it and how it works, so it named “Dark Energy” as something unknown. And 70% of the Universe consists of this Energy....
10 (a) The mean value of an alternating current is zero.Explain why heating occurs when there is an alternating current in a resistor.(b) Transmission of electrical energy is frequently achieved using alternating high voltages.Suggest why(i) high voltages are used,(ii) the voltage is alternati...
A few 1.ago, they sold their big house in town and moved to the countryside. Mr. Warren wanted his family to play a role in 2.the plan, so he read a lot about the electrical system. Then he decided to3.___electricity to power everything they needed for the daily life. The kids...