Define conductors, semi-conductors and insulators. 2. Explain the laws of electrical charges 3. What factors determine the resistance of a circuit? 4. Define voltage, current and resistance 5. Describe the parts of an electrical system. 6. Discuss electrostatic charges. 7. What is the simplest and most common electrical component? 8. What type of switch is commonly used in automobile alarm systems? 9. Where was the earliest known battery discovered and when? 10. How can you determine the amount of resistance in a resistor