power supply - How to control 12V from 5V using transistor? - Electrical Engineering Stack Exchange

i have used BC547 Transistor to stepup from 4.6v but I can't able to draw above 5v from collector, I have given input of 4.6v to base and emitter to ground and collector to output load. but load do

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power supply - How to control 12V from 5V using transistor? - Electrical Engineering Stack Exchange

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