Physics definition

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• 2. the average displacement per unit time of an electron mocing through a wire, its so small because of the radom collisions between electrons and atoms in the lattice (5, 8)
• 3. the amount of energy used by a 1KW device in one hour (8, 4)
• 4. potential difference per unit current (10)
• 7. work done per unit charge (9, 10)
• 8. number of electrons per unit volume (6, 7)
• 9. The charge passing a point when 1 amp flows for 1 second (3, 7)