Assertion: transistor's type | /r/CapableOf | use voltage
Facets:
value: at the base
type: LOCATION
value: to control the current
type: PURPOSE
Source sentences:
text: One type of active device uses a voltage to control the current while another type of active devices uses another current to be the controlling signal.
text: This type of transistor uses the voltage at the base to control the amount of the current that flows through the amplifier.