hi ALL,
ive been stuck for a very long time on these 2 questions for a long time. there just revision questions.
As i have very little knowledge about amps. I would appreciate some help as i feel hopeless. I do NOT expect you guys to answer for me of course since this is homework help section but would like if you could start me of with the right formula and possibly a little information on amps. but mainly help me understand how i can get the correct answer so i can do it myself.
Thanks a million!
1.Three amplifiers are cascaded together. The first stage has a voltage gain of 16 dB and the third stage has a voltage gain of 13 dB. An input signal of 15.5 mV (ptp) results in an output from the third stage of the cascaded amplifier of
2.2 V (ptp), the voltage gain in dB of the second stage is;
A. 12
B. 14
C. 16
D. 18
E. None of the above
2.A circuit consists of two amplifiers with gain 16 dB and 14 dB and a filter with attenuations of -10 dB. If the output voltage is 80 mV, the input voltage is;
A. 4 mV
B. 6 mV
C. 8 mV
D. 10 mV
E. None of the above
ive been stuck for a very long time on these 2 questions for a long time. there just revision questions.
As i have very little knowledge about amps. I would appreciate some help as i feel hopeless. I do NOT expect you guys to answer for me of course since this is homework help section but would like if you could start me of with the right formula and possibly a little information on amps. but mainly help me understand how i can get the correct answer so i can do it myself.
Thanks a million!
1.Three amplifiers are cascaded together. The first stage has a voltage gain of 16 dB and the third stage has a voltage gain of 13 dB. An input signal of 15.5 mV (ptp) results in an output from the third stage of the cascaded amplifier of
2.2 V (ptp), the voltage gain in dB of the second stage is;
A. 12
B. 14
C. 16
D. 18
E. None of the above
2.A circuit consists of two amplifiers with gain 16 dB and 14 dB and a filter with attenuations of -10 dB. If the output voltage is 80 mV, the input voltage is;
A. 4 mV
B. 6 mV
C. 8 mV
D. 10 mV
E. None of the above