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B Describe how an electromagnet could be used to separate copper from iron in a scrap yard. The current flowing through this resistor produces the voltage output of the amplifier.
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The value of this resistor is chosen so that at the amplifiers quiescent operating point Q-point this output voltage lies half way along the transistors load line.
. A Draw a circuit diagram to show how a soft iron piece can be transformed into an electromagnet. The Class A amplifier is the simplest form of power amplifier that uses a single switching transistor in the standard common emitter circuit configuration as seen previously to produce an inverted output. The 06 to 07V dead band which is created during the occurrence of.
The transistor is always biased ON so that it conducts during one complete cycle of the input signal waveform producing minimum distortion and maximum amplitude of. The conduction of both transistors simultaneously is guaranteed by the minimal biasing arrangement. Class AB amplifier is built by biasing the voltage of both switching transistors into slight conduction in an ordinary Class B push-pull stage amplifier regardless of whether input signal is present.
The Common Emitter Amplifier circuit has a resistor in its Collector circuit. The Base of the transistor used in a common emitter. A A coil C of insulated copper wire is wound around a soft iron core NS and the two ends of the copper coil are connected to a battery.
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