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.
A transistor is a semiconductor(like many) that amplifies and switches electrical signals(electronic switch) in a circuit, it is used inside a circuit which requires switching without been manually operated.
The difference between a Transistor and a Resistor is that a transistor is designed to amplify the electrical current, whereas a Resistor is designed to reduce the electrical current.
transient varistor
It acts as a switch in thermostats because it starts curved and when it cools down enough for it to straighten up it touches another piece of metal, completing a circuit before bending again due to the heat. Hope this helped!
He co-invented the transistor
A Unijunction Transistor is a transistor that acts solely as a switch.
No
switch
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.
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 does not act as an amplifier. It is used as a component in an amplifier circuit.
A transistor can electronically switch the output by controlling the flow of current between its two terminals, called the collector and emitter. It has a third terminal, called the base, which acts as a control input. When a small current is applied to the base terminal, it influences the flow of current between the collector and emitter terminals, effectively turning the transistor "on" or "off" and allowing it to change the output state.
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