1. The voltage gain of a 1 kHz low-pass filter is -26 dB; what is its numeric gain?
2. Two amplifiers are cascaded, one with a voltage gain of 6 db and the other with a voltage gain of 4. If 1 V is applied at the input of the first amplifier, what is the voltage at the output of the second amplifier?
3. A passive high-pass filter is built from a 100 kO resistor and a 100 nF capacitor. What is its cutoff frequency?
4. For the filter in question 3, what is its numeric gain at its cutoff frequency?