Need to solve it, any help?

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Hope this helps, otherwise just google non-inverting amplifier

>>8581014
There should not be ohm in the last "sentence", my bad.

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>>8581014
>>8581018
Thanks very much, I would be grateful if you could help me with this last problem

>>8580991
Before anyone spoon feeds you OP what are you confused about? It's imperative you are able to solve a circuit as simple as this without any help.

>>8581033
Sorry, i cant remember ever doing this kind of problem.

>>8581033
ampere's law. 10V source -> 0.7V drop (it's the norm for diodes) in diode -> use ohm's law for V drop in V_r

>>8580991
google up on voltage divider, has all the info in it.

>>8581122
Nigger the question asks for it graphically, draw there IV curve first and then from there draw maximum currrent to 0 current curve of the resistor