How do Electrons Know to Move?
A circuit consists of a battery, an open switch, and a bulb. When the switch is closed, what first causes the electrons in the bulb to move in a particular direction?
A circuit consists of a battery, an open switch, and a bulb. When the switch is closed, what first causes the electrons in the bulb to move in a particular direction?
A) Electrons from the battery eventually reach the bulb
A) Electrons from the battery eventually reach the bulb
B) There is a chain reaction of electrons bumping into one another (like water in a pipe).
B) There is a chain reaction of electrons bumping into one another (like water in a pipe).
C) Charge on the surface of the wire rearranges and then causes an electric field in the wire, thus inducing the electrons to move.
C) Charge on the surface of the wire rearranges and then causes an electric field in the wire, thus inducing the electrons to move.
D) Something else
D) Something else