The graphs show the variation with potential difference V of the current I for three circuit elements. The three circuit elements are a metal wire at constant temperature, a semiconductor diode and a filament lamp.
Which row of the table correctly identifies these graphs?
1 )
metal wire at constant temprature: X / semiconductor diode: Z / filament lamp: Y
metal wire at constant temprature: Y / semiconductor diode: X / filament lamp: Z
3 )
metal wire at constant temprature: Y / semiconductor diode: Z / filament lamp: X
4 )
metal wire at constant temprature: Z / semiconductor diode: Y / filament lamp: X
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