Hi there I am having a little confusion about the circuit below.It is included as an example in my textbook:
We need to solve for the current I.Assume a clockwise current and apply KVL around the loop:
-Vx-12+8I+7I+4Vx=0
-12+15I+3Vx=0
Now the confusion here is that in the book it is written that Vx=-30I.I need to ask why the negative sign is included?Shouldn't it just simply be Vx=IR=30I??
please help clear my confusion.The book makes no mention of why the -ve sign is there.
We need to solve for the current I.Assume a clockwise current and apply KVL around the loop:
-Vx-12+8I+7I+4Vx=0
-12+15I+3Vx=0
Now the confusion here is that in the book it is written that Vx=-30I.I need to ask why the negative sign is included?Shouldn't it just simply be Vx=IR=30I??
please help clear my confusion.The book makes no mention of why the -ve sign is there.