# Problem

# Solution

Three resistors are in series and their equivalent, , is parallel with the voltage source. So, according to the Ohm's law: . The negative sign comes from the direction .

Applying KCL at the bottom node:

.

The lucky winner of the Electrical Circuits Contest #1 is Kunal Marwaha from UC Berkeley. I would like to say thank you to all participants and I am thinking of holding contest #2 soon. Kunal, congratulations and soon you will receive the prize by Paypal.

sir , can u give some information about electrical circuit contest.... . how can i participate?

Hi Sakhawat,

It is over for now. Hopefully, we will have a new contest soon.

How can Ix be -ve since its direction is correct. I has to be +ve....

If Iy is -1A then Ix+Iy-2A=0 shouldn't give Ix=3A?

A negative sign was missing from the KCL. It is corrected now.