Hi I'm new here and have this question I would like to ask. Sorry if I posted in the wrong section! My level of education is not high so please forgive me for this simple problem, though not simple to me. Q: Why is it that in, for example, a series electric circuit that the electric current is constant? I thought about this for very long (a year) when I am free and now, I kind of gave up trying to think of a solution independently. note: this is not a homework I asked my teacher about this and he said: I thought of it and replied him saying: Note: I used div and grad to put my points forward, but I mostly self learned that and thus is not an excellent user of this mathematics. So do forgive any ugly mistakes made and if possible, correct it so that I can learn. Sorry if this seems a little long, but these are some of the considerations I had over about one year thinking about this. So do correct me where I'm wrong and hopefully help me understand why the current is constant in a series circuit.