Instructions:

Submit a single PDF file on Blackboard.

Include the formulae and starting values for full credit. All relevant steps must be shown. Final answers without any supporting calculations or steps will not receive any credit.

Include units with all final answers.

Write your name on the first page of the submission file.

D $1$ is a Red LED with a threshold voltage of $1\mathrm{.}5$ V and D $2$ is a Green LED with a threshold voltage of $2\mathrm{.}5$ V $.$ Find:

a$.$ The current through resistor R$1.$

b$.$ The current through resistor R$2.$