I'm currently doing an HNC in mechanical engineering. Part of the engineering science module is electrical.
I have to analyse a circuit and use Superposition Theorem. I calculated the values given a couple of times to find current "I". What I'm unsure of though is can your value for "I" be a negative number? Or do I just swap the subtraction around to give a positive answer? Surely you can't have a negative current?
I have to analyse a circuit and use Superposition Theorem. I calculated the values given a couple of times to find current "I". What I'm unsure of though is can your value for "I" be a negative number? Or do I just swap the subtraction around to give a positive answer? Surely you can't have a negative current?