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Resistance

Describe the Resistance?  Resistance Ohm's law of Resistance 1) It states that the current (I) flowing through a conductor is directly proportional to the potential difference(V) across the ends of the conductor, provided physical conditions of the  conductor  such as temperature, mechanical strain etc. are kept constant i.e. V= IR or V/I = R. Where R is known as resistance of the conductor, which depends upon the nature and dimensions of the conductor. 2) Ohm's law is valid only for metallic conductors. Ohm law of Resistance Colour code for carbon resistors The number attached from 0 to 9 to the various colours can be recollected by the sentence B.B. Roy Great Britain Very Good Wife. Black- 0, Brown-1, Red-2, Orange-3, Yellow-4, Green -5, Blue -6, Violet -7, Gray-8, White -9 . The strip of gold, silver and no colour shows the accuracy of 5%, 10% and 20% of the given carbon resistor. For the given carbon resister, its resistance is determined...