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davenn

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There is no constant in there other than whichever one you want to remain constant

so for your example R = V/I ... if V is steady and you measure the current flowing in the circuit, you can establish the resistance present

so for any variation of those 3, from any 2 knowns, you can work out the unknown value

Dave

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Why would the temperature need to remain constant? Resistance will vary with temperature but that doesn't invalidate Ohm's Law, it just means that for a fixed voltage, the current will fluctuate inversely with the resistance fluctuation

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Or , V ∝i , and V=iR .

Thus the constant of proportionality , by ohm's law , is R .

I hope this helps .

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OR, the current induced is directly proportional to the voltage applied.Ohm's law states that for constant physical conditions , the potential difference applied across a circuit is directly proportional to the current induced .

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it does make sense to me....my notes states so as well but i just needed clarification

Or , V ∝i , and V=iR .

Thus the constant of proportionality , by ohm's law , is R .

I hope this helps .

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