RC coupling is not used to amplify extremely low frequencies because( )
A: There is considerable power loss
B: There is much noise
C: Electrical size of coupling capacitor becomes very large
D: None of the above
A: There is considerable power loss
B: There is much noise
C: Electrical size of coupling capacitor becomes very large
D: None of the above
举一反三
- Very high quality, ____ the relatively low prices, has made these cars very popular A: coupled B: coupled with C: coupling D: coupling with
- semi-permanent coupling
- Which one of the following responses is photoreversible? A: Low fluence responses B: Very low fluence responses C: High irradiance responses D: None of the above
- In low frequency range, drop in gain is caused by ( ) A: bypass capacitors B: coupling capacitors C: transistor's parasitic capacitors D: bias resistors
- In low frequency range, drop in gain is caused by ( ) A: bypass capacitors B: coupling capacitors C: transistor's parasitic capacitors D: bias resistors