Take a look at the attached picture of the circuit diagram i'm working on.

I'm trying to:
1) Calculate the current and voltage drops across each component.
2) Calculate the power dissipated in the resistors of each branch circuit.
3) Assume a silicon diode 1N4148 will conduct when a forward potential of 0.7v is applied across it.

Help with any of these questions would be amazing.

I don't know what it is but i just can't wrap my head around it!

Cheers guys

 

Branches 1, 2 & 3 are fairly easy. Unfortunately, the LEDs are likely to have a different forward voltage drop than the diodes, so without more information, branches 4, 5 & 6 are not solvable.

 

Would i treat branch 1,2,3 as parallel?

 

Would i treat branch 1,2,3 as parallel?

Trace out the power source for the answer to this question.