work like on off switch!!
Transistor are DC output, Triac are AC output.
AC 126
Yes, a transistor can amplifiy an a.c. signal.
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An AC transistor in electronic circuits is used to amplify and control the flow of alternating current (AC) signals. It acts as a switch or amplifier to regulate the voltage and current in the circuit, allowing for the manipulation and processing of AC signals for various applications.
farzi....
This mechanism is how a transistor works.
The transistor is a "single direction current flow" device. Typically, for an NPN device, the collector must be more positive than the emitter for the device to bias on. You could use the transistor in an AC circult, but it would only conduct on half the cycle.
It depends on how you bias the transistor. If you ground the emitter, which is very common, you will need to offset the input signal so you can amplify the full voltage swing.
DHPT in full is Double Heterostructure Photo Transistor. DHPT works by interchanging the double heterostructure's emitter and collector all through when the transistor is in use.
Define BJTSRAM?
The saying "at what current is transistor biased" means to ask the current through the transistor when there is no signal present. Typically, a transistor is biased at the center of its linear region, so as to minimize distortion. This, of course, depends on whether or not the transistor is AC or DC coupled, and where the clipping points might be.