Why the ic was pretty much constant for first ohms values

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Reference no: EM13268663

A transistor current source (also known as current ''sink'') was built with a 2N3904. The Ic was measured for different values of a load resistance. It was noticed that Ic was pretty much constant for the first 1900 ohms values, but then it suddenly decreased. Why did that happen?

Reference no: EM13268663

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