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6. What is the formula for resistance?
7. What two parts of an atom have a charge?
- Positons and negatons
- Protons and neutrons
- Electrons and protons
- Electrons and neutrons
8. Which one of these is NOT a factor affecting resistance?
- Temperature
- Cross-sectional area
- Pressure
- Material
9. What is Ohm's law?
- Amps are directly proportional to voltage
- Current is directly proportional to resistance
- Current is proportional to the PD
- Voltage is proportional to resistance
10. Which materials better transfer electricity?
- Seminsulators
- Conductors
- Semiconductors
- Insulators