Match each fundamental principle of electrical current on the left with its correct physical definition or standard unit on the right.
- Electric CurrentThe rate at which electric charge flows through a cross-section of a conductor
- AmpereThe standard SI unit defined as the passage of one coulomb of charge per second ()
- Electron FlowThe continuous movement of negative charge carriers from the negative terminal to the positive terminal
- Conventional CurrentThe historical convention defining current as flowing from the positive terminal to the negative terminal
Answer
Electric Current pairs with the rate of electric charge flow; Ampere pairs with one coulomb per second; Electron Flow pairs with movement from negative to positive; Conventional Current pairs with flow from positive to negative.
Electric current is the rate at which charge passes a point in a circuit, measured in amperes (). In physical conductors, negatively charged electrons flow from the negative source terminal to the positive terminal (electron flow), whereas standard circuit analysis historically assumes flow from positive to negative (conventional current).
Step-by-Step Solution
Key Concept
Electric current is the time rate of charge flow, measured in amperes (), with electron flow occurring from negative to positive and conventional current modeled from positive to negative.
Estimated Time:45s