Why do I have voltage on Collector and Emitter when NPN transistor turns on? How to get rid of it?

by James Pie   Last Updated March 14, 2019 19:25 PM

I have a 2N3904 NPN transistor. I'm feeding the base 5V. the transistor turns on just fine and it shorts the collector and emitter. However, when I turn my meter on volts, I read around 1- 1.5 volts across E and C. I am using this transistor in a project as a sinking output. Why am I reading this voltage and can I get rid of it?



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