Question

When the ends of metal wire are not connected to a battery

• A. electrons move from positive electrode to negative electrode.
• B. electrons move from negative electrode to positive electrode.
• C. electrons move in random directions.
• D. protons move in random direction in such a way that their net movement in a unit volume is zero.

Answer 1

Answer: (C)

electrons move in random directions.

When the ends of the metal wire are not connected to a battery, no electric field is produced inside the wire. Thus no force acts on the electrons in the wire. So the electrons collide with each other and move in random directions.