An amplifier operating from ±3V provide a 2.2V peak sine wave across a 100 ohm load when provided with a 0.2V peak sine wave as an input from which 1.0mA current is drawn. The average current in each supply is measured to be 20mA. What is the amplifier efficiency?
In order to prevent distortion in the output signal after amplification, the input signal must be
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The voltage gain of the amplifier is 8 and the current gain is 7. The power gain of the amplifier is
Statement 1: Voltage gain of -5 means that the output voltage has been attenuated.Statement 2: Voltage gain of -5db means that the output voltage has been attenuated.
Symmetrically saturated amplifiers operating in clipping mode can be used to convert a sine wave to a
If Av, Ai and Ap represents the voltage gain, current gain and power gain ratio of an amplifier which of the below is not the correct expression for the corresponding values in decibel?
An amplifier has a voltage gain of 100 V/V and a current gain of 1000A/A. the value of the power gain decibel is
137 videos|143 docs|71 tests
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137 videos|143 docs|71 tests
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