Question

Which of the following describes electric current?

A. Electric current is the flow of protons
B. Electric current is the flow of neutrons
C. Electric current is the flow of a charge
D. Electric current is the flow or protons and neutrons

Answer 1

Electric current is the flow of a charge

Step-by-step explanation:

Electric current is defined as the flow of electric charges. Mathematically, it is given by :

`I=(q)/(t)`

Where

q = electric charge

t = time interval

The SI unit of electric current is ampere. It is denoted by letter A. According to Ohm's law, electric current can be given by voltage divided by resistance of the circuit. Hence, the correct option is (c) " Electric current is the flow of a charge ".

Answer 2

Electric current is the flow of a charge. The electric current can be positive, negative, or neutral, or any combination of the two. They can carry protons, neutrons, or electrons.