The graphs illustrate possible current-voltage ($I$-$V$) relationships for a filament lamp and for a semiconductor diode. Which row correctly gives the $I$-$V$ graphs for the lamp and the diode?
- Afilament lamp: P; semiconductor diode: R
- Bfilament lamp: P; semiconductor diode: S
- Cfilament lamp: Q; semiconductor diode: R
- Dfilament lamp: Q; semiconductor diode: S