transistor is a nonlinear device. it will acts as a swicth based on the cut in voltage we can easily identifying the the transistor is in forward or reverse bias.in forward it is 'on' reverse bias 'off'.
A transistor is used to switch electronic signals.
A Unijunction Transistor is a transistor that acts solely as a switch.
it is a transistor used in IR TOGGLE SWITCH. :-)
transistor has 2 output 1 and 0 so can be used as a switch
A transistor is a switch. A diode directs the flow of current.
Transistor or vacuum tube.
A: When a transistor is saturated current can flow in both direction qualifying it as a switch
A rest transistor is either a pMOS or nMOS high VT transistor and is utilized as a change to close off force supplies to parts of a configuration in standby mode. The pMOS rest transistor is utilized to switch VDD supply and henceforth is known as a "header switch."
Only because the circuit that its embeded in is designed that way. Remember, a transistor is basicly an amplifier ... only if you design everything to go to the extreams will it act as a switch.
work like on off switch!!
No
ALL transistors can be used as switch. however there are certain parameters to be noted. speed saturation and storage time. Once a transistor is saturated current may flow either way