Why is Q1 on and Q2 off in this BJT differential amplifier?

jafferrox
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I don't understand why Q1 is on and Q2 is off.

Can someone explain me the reason for that?

Thanks in advance.
 

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The base of Q1 is at 1V. What is the emitter of Q1 at?
Then, what is Vbe for Q2? Can it be on?
 

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