The electrons in a metallic conductor move only if there is a difference of electric
pressure called the potential difference along the conductor. The potential difference
may be produced by a battery, consisting of one or more electric cells. The chemical
action within a cell generates the potential differences across its terminals. When the
cell is connected to a circuit element, the potential differences sets the electrons in
motion and produces an electric current.
A ) Name a device that helps to maintain the potential differences.
B ) What is meant by a potential difference of 1 volt?
C ) Would the electrons move from higher potentials to lower potentials or vice–versa?
D ) Name the device which is used to measure potential difference between two points
Answers
Answered by
2
Answer:
A
Explanation:
A
Similar questions