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But q2 is a pnp transistor and the current is flowing out from his base into q1 collector
So the q1 total collector current is the current that flows through r1 + the current that flows out from q2 base. In these conditions it's ok to approximate the current that flows through r4 equal with the current that flows through r1 ?
But q2 is a pnp transistor and the current is flowing out from his base into q1 collector
So the q1 total collector current is the current that flows through r1 + the current that flows out from q2 base. In these conditions it's ok to approximate the current that flows through r4 equal with the current that flows through r1 ?
thank you all.
So, for rough aproximation it is ok neglect base currents.