Problem 59-2    Source:   Problem elaborated by the site's authors.

For the circuit shown in Figure 59-02.1, determine:

a) the filter cutoff frequency.

b) what is the phase difference between the output voltage and the source voltage at the cutoff frequency.

Solution of the Problem 59-2   

Item a   

This configuration is that of a high pass RC circuit. Therefore, the cutoff frequency is given by eq. 59-04, repeated below.

Replacing with numerical values and carrying out the calculation, we find:

Item b   

Initially we must calculate the capacitive reactance of the capacitor at the cutoff frequency.

Substituting this value into eq. 59-14, we obtain:

Carrying out the calculation, we obtain: