The ohmic resistance value of a specific substance is a material constant, and unlike resistance, is independent of the dimensions of the sample. Good conductors, such as gold, hold many electrons which are not bent. These are called free electrons. Charge moves more readily through some material than through others.
The resistance of a specimen is a quantification of how much the sample obstructs the flow of electrons through it. The type of substance within a resistor and it’s physical dimensions and some of the factors which determine it's resistance.
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