Rheostat varying current in a circuit. A Rheostat (lower right),also known as a variable resistor,has a resistance which can be altered. Ohm's law states that V=IR,where V is voltage,I is current and R is resistance. Voltage is kept fixed in the circuit. So when resistance is increased,current is decreased linearly | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Andrew Lambert Photography |
Taille de l’image : | 4926 px × 3593 px |
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Property Release : | Non requis |
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