Question

what particle is generated and flows through a circuit in the battery?
a protons
b electrons
c neutrons
d atoms

Explanation:

In a battery - powered circuit, the flow of electric current is due to the movement of charged particles. Protons are positively charged and are bound within the nucleus of an atom, so they don't flow freely in a circuit. Neutrons are neutral and also bound in the nucleus, so they can't be the particles that flow. Atoms are the basic units of matter and are not the charged particles responsible for current flow. Electrons are negatively charged particles that are free to move in a circuit (in conductors) and are the particles that are generated (through chemical reactions in the battery) and flow to create an electric current.

Answer:

b. electrons