Resistivity and Conductivity
- Created by: louderthanbombzz
- Created on: 16-03-17 21:28
Other questions in this quiz
2. What do alloys contain, where the change in resistance is very small?
- Iron.
- Constantan.
- Copper.
- Silver.
3. When length is doubled, what else is doubled?
- Voltage
- Conductance
- Resistance
- Current
4. What are platinum alloys used for due to their range of resistances being known?
- Light sensors.
- Temperature sensors.
- Filament wire.
- Variable resistors.
5. What happens when a filament lamp becomes white hot?
- The current falls, and so the resistance must have increased.
- It no longer obeys Ohms Law due to temperature increasing resistance.
- The voltage increases, which causes the temperature to increase, making the resistance rise.
- The current increases and this causes the resistance to fall.
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