Skip to content
Back to quiz
6. An ammeter is always connected ...
- ... to a power supply
- ... in series with components
- ... in parallel to components
7. A diode...
- ...changes resistance if the light level changes
- ...only lets current through in one direction
- ...lights up
8. Current...
- ... travels from positive to negative
- ... travels in the same way as the electrons
- ... is measured in volts
9. Voltage is a measure of...
- ...the total energy in a circuit
- ...the difference in energy between two points in a circuit
- ...the difference in current between two points
10. A diode...
- ...needs a small voltage across it before it will conduct current
- ...changes resistance depending on temperature
- ...has a current-voltage graph which is symmetrical