One of the most important and basic concepts in Electrical Engineering is the Voltage Divider. This law states that:
In any series circuit of two resistors, the total voltage is divided on the basis of their resistance (RCE).
For example, consider two resistors (will use R afterwards to denote it) of 10 and 5 k each and lying in series (S). If a voltage source is providing 20 V, then it will be divided between them. The more the amount of RCE, the more will be the voltage dropped across it.
In present case 10 will receive a 13.33 V drop whereas 5 will receive a 6.66 V across it.
The basic formula which governs this amount is represented here:
The simple formula is very simple and easy to understand. One can easily expand this formula to any number of resistors. Suppose that we have 1, 2 and 10 RCS’s lying in the series configuration. The same formula for calculations will be used. However, in the present case, the third component will be added in the denominator.
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