Electric signal amplification is used throughout all electrical devices. The amount of amplification gain provided by...

  

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Electric signal amplification is used throughout all electrical devices. The amount of amplification gain provided by a circuit is given by the ratio Again = Pout Pin Vout Where the power out of the amplifier is Pout = Rout Pin = Rin ..and power in to the amplifier is More commonly expressed as a Bel (B) or a tenth of a B... decibel (dB) using log to the base 10 A Bel=log Pout Pin = 10 log Pout Pin Using this information, review then answer the following questions. A power amplifier receives voltage signal of 3 mV and amplifiers the associated input power by gain factor of Again = 304 a/ What is the gain in Bels and decibels ? b/ In the majority of applications, amplifiers are built with the resistances Rout = Rin- Derive the decibel expression for voltage gain c/ Show how Vout = 10.3 mV Electric signal amplification is used throughout all electrical devices. The amount of amplification gain provided by a circuit is given by the ratio Again = Pout Pin Vout Where the power out of the amplifier is Pout = Rout Pin = Rin ..and power in to the amplifier is More commonly expressed as a Bel (B) or a tenth of a B... decibel (dB) using log to the base 10 A Bel=log Pout Pin = 10 log Pout Pin Using this information, review then answer the following questions. A power amplifier receives voltage signal of 3 mV and amplifiers the associated input power by gain factor of Again = 304 a/ What is the gain in Bels and decibels ? b/ In the majority of applications, amplifiers are built with the resistances Rout = Rin- Derive the decibel expression for voltage gain c/ Show how Vout = 10.3 mV