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A: By saturating a transistor meaning forward bias the base to emitter the voltage across the collector and base should be very low . depending on current it can be .050 v to .5v reversing or removing the bias voltage this voltage should be the same as the rail

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13y ago
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10y ago

For a normal transistor, it would probably be around 2 volts or so. I'd use 5 volts, just to be sure.

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