how to find base current
Answers
Explanation:
Unless you are good at iterative math, you'll have to make some simplifying assumptions:
The transistor is on, so its VBE is about 0.6V.
The transistor is in saturation, so that its VCE is about 0.2V.
Assuming the LED is white, its VF is about 3V.
From these, you can calculate the base current IB=9V−0.6V220kΩ and collector current IC=9V−0.2V−3V330Ω, and then find β=ICIB. If you find a transistor whose datasheet βF is larger than this value, then the circuit will work as advertised (once the transistor goes into saturation, its β will drop to the calculated value). However, if you find a transistor whose datasheet βF is less, then it won't work as calculated -- and the collector current will be less, limited to IC=βIB.
Answer:
The most common way to find base current is by DC analysis of the transistor circuit .
Explanation:
hope this help ful.