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Clarified title (added textual description of the schematic); mathjaxed smybols and values; fixed typos; added [current-source]
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edit approved Apr 30, 2017 at 16:55
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edit approved Apr 30, 2017 at 16:55
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Finding the resistors value in a transistor circuit that uses a constant current source

In this schematic VBEon=0.7V\$ V_{BE(on)} = 0.7 V \$, beta=100\$ \beta=100 \$ and R5,R4 is\$ R5, R4 \$ are unknown.After After calculations I find that R4=1.75KΩ\$ R4 = 1.75kΩ \$ and R5=16.5kΩ\$ R5 =16.5kΩ \$ but I am not sure for these results. What is the right answer?

Can anyone help me if transistor Q3,Q2\$ Q3, Q2 \$ act as a current mirror?   

enter image description hereCircuit

Finding the resistors value in a circuit

In this schematic VBEon=0.7V, beta=100 and R5,R4 is unknown.After calculations I find that R4=1.75KΩ and R5=16.5kΩ but I am not sure for these results. What is the right answer?

Can anyone help me if transistor Q3,Q2 act as a current mirror?  enter image description here

Finding the resistors value in a transistor circuit that uses a constant current source

In this schematic \$ V_{BE(on)} = 0.7 V \$, \$ \beta=100 \$ and \$ R5, R4 \$ are unknown. After calculations I find that \$ R4 = 1.75kΩ \$ and \$ R5 =16.5kΩ \$ but I am not sure for these results. What is the right answer?

Can anyone help me if transistor \$ Q3, Q2 \$ act as a current mirror? 

Circuit

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elecV1
elecV1
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Finding the resistors value in a circuit

In this schematic VBEon=0.7V, beta=100 and R5,R4 is unknown.After calculations I find that R4=1.75KΩ and R5=16.5kΩ but I am not sure for these results. What is the right answer?

Can anyone help me if transistor Q3,Q2 act as a current mirror? enter image description here