3

In typical metallic wiring, current flows in the form of negatively charged electrons. In semiconductors (such as transistors in electronics or solar panels), current flows as either negative electrons and positive holes depending on type. In plasmas (such as an arch from an electric lighter or fusion plasma in a power plant), current flows as both ...


1

One metaphor to illustrate is the folowing: Imagine a company $C$ which has two departments: A production department; let’s call it’s production rate $I$. A shipping/delivery department; let’s call it’s delivery speed $V$. The average daily rate isn’t affected by the the delivery speed, only the instant delivery rate at a given instant in time is affected. ...


1

It probably would not make sense to do so, since electric current is not simply the motion of a bunch of charge. Instead, electric current is the net motion of electrically charged particles and the movement of electric field disturbances connected to the charges. The objects that are really contributing to electric current are called charge carriers. ...


1

Forget about the details of circuit analysis for a moment and think of what the wire and plug is physically: it's a strip or rope of metal. Perhaps it is in several joined pieces (e.g. the "wire" part versus the "prong" part), and wrapped up with plastic insulation, but still. Hence, when you plug the wire into the power strip, it is no ...


Only top voted, non community-wiki answers of a minimum length are eligible