Figure 2 Note that the capacitors have different values.
-Refer to Figure 2. The fc for the second section is
A)1.6 kHz
B)800 Hz
C)80 Hz
D)160 Hz

Question

Figure 2 Note that the capacitors have different values.
-Refer to Figure 2. The fc for the second section is
A)1.6 kHz 
B)800 Hz 
C)80 Hz 
D)160 Hz

Quizplus · Accepted Answer

The fc for the second section is 1.6 kHz because the fc is inversely proportional to the time constant, and the time constant is equal to the product of the resistance and capacitance. The resistance is 1 kΩ, and the capacitance is 1 μF, so the time constant is 1 ms. The fc is then equal to 1 / (2π * 1 ms) = 1.6 kHz.

Figure 2 Note That the Capacitors Have Different Values