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Electrical Resistance

154 bytes removed, 08:54, 26 October 2018
Example Calculations
Current = 0.1[[A]]
:<math>R = \tfrac{V}{I}</math>
:<math>R = \tfrac{5}{0.1}</math>
<math> R = 50 \Omega</math>
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Force Potential Difference = 10,000N12[[V]]
Distance moved in the direction of the force Current = 15m200[[mA]] = 0.2[[A]]
:<math>R = \tfrac{V}{I}</math>
<math> W R = 10,000 \times 15tfrac{12}{0.2}</math>
<math> W R = 15,000J60 \Omega</math>
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Force Potential Difference = 40N6[[V]]
Distance moved in the direction of the force Current = 0m10[[mA]] = 0.01[[A]]
:<math>R = \tfrac{V}{I}</math>
<math> W R = 20 \times tfrac{6}{0.01}</math>
<math> W R = 0J600 \Omega</math> No '''work''' has been done because the movement is not in the direction of the [[force]]. The [[weight]] acts downwards but the movement was horizontal.
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