(a) Name the particles which are responsible for the flow of current in a metallic wire.
(b) Explain the flow of current in a metallic wire on the basis of movement of the particles named by you above in part(a)
(c) What is the cause of resistance offered by the metallic wire in the flow of current through it?
(a) Name the particles which are responsible for the flow of current in a metallic wire.
(b) Explain the flow of current in a metallic wire on the basis of movement of the particles named by you above in part(a)
(c) What is the cause of resistance offered by the metallic wire in the flow of current through it?
(a) Electrons are responsible for flow current in metal.
(b) When potential difference is created between the two ends of the conductor, electron flows from lower potential region to higher potential due to which current flow in the circuit in the direction opposite to the electron.
(c) Resistance of a given conducting wire is due to the collisions of free electrons with each other, the ions or atoms of the conductor and the walls of the conductor during their drift towards the positive end of the conductor which in turn depends upon the arrangements of atoms in the conducting material as well as on the length and thickness of the conducting wire.
(a) Electrons are responsible for flow current in metal.
(b) When potential difference is created between the two ends of the conductor, electron flows from lower potential region to higher potential due to which current flow in the circuit in the direction opposite to the electron.
(c) Resistance of a given conducting wire is due to the collisions of free electrons with each other, the ions or atoms of the conductor and the walls of the conductor during their drift towards the positive end of the conductor which in turn depends upon the arrangements of atoms in the conducting material as well as on the length and thickness of the conducting wire.
