How electron flow causes electric current with drude and Lorentz theory of electrons

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Solution

Lorentz-Drude proposed that conductors like metals contain a large number of free electrons. They are loosely bound and can wander around the entire metal.
But the positive ions are fixed in their locations. The arrangement of the positive ions is called lattice. The negative ions (electrons) move randomly in lattice in an open circuit.
When the lattice is closed the electrons are arranged in ordered motion. This causes electric current. electrons are loosely bound and in metal can wander around the entire

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