Material, is it a constant? It means if we double the voltage, the current must also get doubled because the ratios should remain the same. The ratio of voltage and current through that Material obeys Ohm's law, we need to check whether And so, another way to look at this, is we could say if weĭivide this equation by I, we could say V divided by I should equal R, should be a constant. In other words, in this equation, this number is a constant. So even if we change these values, for any given material, like let's say we have for a given wire, let's say, as we change the values of the voltage or the current, this ![]() That it does not depend on the values of voltage or current. You see, the resistance is a property of the material and its dimensions and something we'll talk So to do this, we need to first understand a little bit more about this Whether this relationship, Ohm's law, whether it Have some material with me, how do I check, practically, If you need a refresher it will a great idea to go back and watch that video and And we have talked in detail about this in a previous video, so That the material offers to the flow of charges Then Ohm's law says that V must equal I times R. This, a current starts running over here, let'sĬall that current as I. The ends of this wire is V, and because of ![]() Potential difference across the ends of that, so let's say the potential difference across You take any material, like let's say, windings of a wire and if we apply a How we can practically verify whether any material obeys Ohm's law.
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