Electrical resistance - Wikipedia, the free encyclopedia
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The electrical resistance of an object is a measure of its opposition to the passage of a steady electric current. An object of uniform cross section will have a resistance proportional to its lengt...
en.wikipedia.org/wiki/Electrical_resistance
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SparkNotes online free test prep ... This equation tells us that we can maximize the current by having a large voltage drop and a small resistance. This is one of the most important equations dealing with electromagnetism, and SAT II Physics is bound to call upon you to remember it.
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www.sparknotes.com/testprep/books/sat2/physics/chapter1...
www.sparknotes.com/testprep/books/sat2/physics/chapter14section3.rhtml
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There are three external factors that influence the resistance in a conductor. Thickness (cross sectional area of the wire), length, and temperature all have some effect on the amount of resistance created in a conductor.
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www.regentsprep.org/Regents/physics/phys03/bresist/defa...
www.regentsprep.org/Regents/physics/phys03/bresist/default.htm
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The resistance of a conductor is a measure of the opposition it offers to the flow of electric current. ... Search; Site Map; Biology; Chemistry; >Physics; Electronics; Technology; History; History of Science and Technology; Study Guide; New; About; Gallery...
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www.saburchill.com/physics/chapters/0042.html
www.saburchill.com/physics/chapters/0042.html
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Encyclopedia article about Resistance (physics). Information about Resistance (physics) in the Columbia Encyclopedia, Computer Desktop Encyclopedia, computing dictionary. ... (redirected from Resistance (physics))
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encyclopedia2.thefreedictionary.com/Resistance+(physics...
encyclopedia2.thefreedictionary.com/Resistance+(physics)
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Tutorials, tips and advice on GCSE Physics coursework and exams for students, parents and teachers. ... Click on your choice below:
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Alternate statements of Ohm’s law are that the current I in a conductor equals the potential difference V across the conductor divided by the resistance of the conductor, or simply I = V/R, and that the potential difference across a conductor equals ... For a definition of "Ohm's law (physics)", visit Merriam-Webster.
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www.britannica.com/EBchecked/topic/426070/Ohms-law
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You might have noticed on the table for specific resistances that all figures were specified at a temperature of 20o Celsius. If you suspected that this meant specific resistance of a material may change with temperature, you were right!
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www.allaboutcircuits.com/vol_1/chpt_12/6.html
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Conductor ampacity rating is a crude assessment of resistance based on the potential for current to create a fire hazard. However, we may come across situations where the voltage drop created by wire resistance in a circuit poses concerns other than fire avoidance.
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www.allaboutcircuits.com/vol_1/chpt_12/5.html
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