Final answer:
The gain of an active band pass filter and the overall gain can be calculated using specific formulas.
Step-by-step explanation:
Active Band Pass Filter Gain:
The gain of an active band pass filter can be calculated using the formula:
Gain = Av * (R2/R1)
Where Av is the voltage gain of the op-amp and R2/R1 is the ratio of the feedback resistors.
Overall Gain:
The overall gain of the active band pass filter can be determined by multiplying the gain of the active band pass filter with the gain of the preceding amplifier stage.