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Basic Principles of Electricity MCQs

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1. A_______ is the smallest particle of an element.





2. An atom is the _______ of an element that retains its characteristics.





3. The central part of atom is _______.





4. Proton has _______ charge.





5. Proton is _______ times heavier than electron.





6. The number of _______ and protons are equal in an atom.





7. A neutron is _______ times heavier than electron.





8. Electron has _______ charge.





9. Electron is _______ than the mass of proton.





10. An atom has _______ number of electrons and protons.





11. The shells around the nucleus are named as _______.





12. K shell has _______ electrons.





13. The electron in incomplete outermost orbit is called _______ electron.





14. The _______ is the closest shell to the nucleus.





15. Valance electrons are _______ tightly bound to the atom.





16. The material that does not conduct current is called _______.





17. The material between conductor and insulator is called _______.





18. A conductor is a material that _______ conducts electrical current.





19. The unit of current is _______.





20. The unit of potential is _______.





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