In general, you make assumptions about the states of the diodes, analyze the circuit under those assumptions, and then verify that the resulting answers are consistent with all of the assumptions made. When you assume a diode is off, then what do you know about the constraints on the current through it and the voltage across it. When a diode is on, what do you know about the constraints on the current through it and the voltage across it?I found this question online (see attachment) and I'm not sure how the voltage drops across the 'off' diodes, 7V and -3V, were found.
Yes, and thank you for using units (though you should include the Ω).Also, is the current in part (c) 10V/(4k+6k) = 1 mA?
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