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An example of a real life exponential function in electronics is the voltage across a capacitor or inductor when excited through a resistor. Another example is the amplitude aâ¦s a function of frequency of a signal passing through a filter, when past the -3db point.
Some Real-Life Applications of. Rational Functions. There are many situations in the real world where an application of a rational function is used as a representation. There are three well-known situations that follow under this category of rational functions.alculating pH with a logarithmic function. A logarithmic function can be used to calculate the pH of a substance based on the concentration of hydrogen ions. This is the logarithmic equation that is used for determining pH.