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There are 17 videos in this category and 0 videos in 0 subcategories.
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Not Right For WatchKnowLearn
Ages: 13 - 18
166 Views:
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An introduction to Conventional Current and Direct current. Includes conventional current direction and dimensions. We even talk about the Bohr model of the atom. And, of course, an example problem where we figure out current and the number of elect...rons that pass through the wire. (10:14)
Content Times: (click time to access)
0:18 Definition of Current
1:05 The Dimensions for Current
2:00 Conventional Current (Current Direction)
3:25 Alternating and Direct Current
5:11 Reading the Example Problem
6:44 Solving for Current (part a)
7:53 Solving for Number of Charges (part b)
9:13 How many is 81 Quadrillion Elections?
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Defining Resistance, Ohmic vs. Non-Ohmic and Electric Power
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December 2, 2013 at 05:04 PM
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Not Right For WatchKnowLearn
Ages: 11 - 18
310 Views:
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This is a detailed explanation of potential difference and current suitable for GCSE and Alevel students. (09:11)
January 26, 2013 at 12:08 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
1656 Views:
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Electricity is generated by introducing conducting wire, usually copper or aluminum, to a magnetic field. Learn more about how electricity is generated from a math and science teacher, Steve Jones. (03:02)
May 11, 2010 at 07:53 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
1133 Views:
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The instructor gives more classroom demonstrations dealing with electric current, voltage, resistance, and Ohm's Law. The classroom is dark because the instructor is using a projector in a darkened room.
April 28, 2010 at 09:45 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
1117 Views:
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This vide offers information about the fundamentals of current and voltage. The video also has explanations of the units Amps, Volts, Coulombs per second and Joules per Coulomb.
April 28, 2010 at 09:39 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
1053 Views:
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This video describes voltage, the potential difference or "pressure" that pushes electric charges through conductors.
April 28, 2010 at 09:25 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
976 Views:
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This video describes voltage, the potential difference or "pressure" that pushes electric charges through conductors.
April 28, 2010 at 09:27 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
949 Views:
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Voltage
From khanacademy.org, produced by Kahn Academy
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This video ten minute video explores voltage. The video primarily differentiates electric potential and electrical potential energy. Electric
potential energy is the amount of work that is needed to move that
particle from one spot to another. Th...e video features animation and a spokesperson.
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May 29, 2011 at 05:44 PM
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Not Right For WatchKnowLearn
Ages: 9 - 18
603 Views:
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In this interactive simulation adapted from the University of Colorado's Physics Education Technology project, learn about the relationship between electric current, voltage, and resistance. Known as Ohm's law, this relationship can be described by t...he equation V = I x R. In this activity, you can adjust the voltage and resistance in a simple circuit to see how the current changes according to Ohm's law.
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May 18, 2012 at 11:36 PM
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Not Right For WatchKnowLearn
Ages: 13 - 18
601 Views:
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In this interactive resource adapted from the Wisconsin Online Resource Center, learn how a generator produces alternating current. More specifically, see how slip rings, brushes, an armature loop, and a magnetic field interact to produce single-phas...e alternating current. Animations show how positive and negative voltages are induced into the armature loop as it rotates through the magnetic field, and how the polarity of the voltage changes periodically, visualized as a sine wave.
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May 4, 2012 at 11:51 PM
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