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A diode allows current to pass in one direction only, and has two pins - Anode and Cathode. A transistor is a switch that has three pins - Collector, Base, Emitter, and a current can pass between the collector and emitter if there is a current on the base.
A picture of diodes and transistors can be found here (left to right: diode, transistor, transistor, LED - diode that lights up):
http://www.mediafire.com/imageview.php?quickkey=zmwz5and0lm&thumb=6
What else can I help you with?
Diodes and transistors are made of semiconductor material such as germanium and what?
Silicon
What are the advantages of collector to base biased?
it converts it to a diode. sometimes this is done for matching the characteristics of diodes and transistors in the circuit. standard diodes might not have similar enough curves to the transistors for the circuit to operate correctly.
Why transistors is not used instead of diodes in building logic circuits?
Transistors are preferred over diodes in building logic circuits because they can act as both switches and amplifiers, allowing for more complex logic operations. Unlike diodes, which only allow current to flow in one direction, transistors can control the flow of current based on input signals, enabling the implementation of various logic functions. Additionally, transistors can be integrated into compact circuits, providing greater scalability for digital systems. This versatility makes transistors essential for modern logic circuits.
Can back to back semiconductor diodes can be added as npn or pnp transistors?
no, the shared base of a transistor between the emitter & collector must be thin to get the transistor effect. the thinner the better for high frequency transistors. this cannot be faked using individual discrete diodes.
How many transistors did the ENIAC have?
Eniac didn't have any transistors. It was built with 17,468 vacuum tubes, 7,200 crystal diodes, and a whole host of other components. But no transistors. The first transistor was created in November, 1947, almost two years after Eniac was completed.
Diodes and transistors are made of semiconductor material such as germanium and what?
Silicon
What are the advantages of collector to base biased?
it converts it to a diode. sometimes this is done for matching the characteristics of diodes and transistors in the circuit. standard diodes might not have similar enough curves to the transistors for the circuit to operate correctly.
What is the purpose of diodes in a push pull amplifier?
To bias the transistors at 0.7 Volts.
Why transistors is not used instead of diodes in building logic circuits?
Transistors are preferred over diodes in building logic circuits because they can act as both switches and amplifiers, allowing for more complex logic operations. Unlike diodes, which only allow current to flow in one direction, transistors can control the flow of current based on input signals, enabling the implementation of various logic functions. Additionally, transistors can be integrated into compact circuits, providing greater scalability for digital systems. This versatility makes transistors essential for modern logic circuits.
Can back to back semiconductor diodes can be added as npn or pnp transistors?
no, the shared base of a transistor between the emitter & collector must be thin to get the transistor effect. the thinner the better for high frequency transistors. this cannot be faked using individual discrete diodes.
What displaced the vacuum tube in most electrical circuits?
Solid state electronics (diodes and transistors primarily)
What happens when you hook up a battery wrong?
You probably will destroy the diodes in the alternator and any other electronic equipment that includes transistors or diodes.
How many transistors did the ENIAC have?
Eniac didn't have any transistors. It was built with 17,468 vacuum tubes, 7,200 crystal diodes, and a whole host of other components. But no transistors. The first transistor was created in November, 1947, almost two years after Eniac was completed.
Why different transistor have different resistance?
Because they are different transistors. Resistance among their internal diodes is one of the main features of a transistor.
Is there another use for semiconductors other than to conduct electricity?
Yes. In electronic devices, semiconductors fulfill a variety of functions, including current filtering - a semiconductor diode only lets current pass in one direction - and signal amplification, using transistors. Transistors have many uses, including for electronic switching. Do some reading on diodes and transistors, while bearing in mind that they use semiconductors.Yes. In electronic devices, semiconductors fulfill a variety of functions, including current filtering - a semiconductor diode only lets current pass in one direction - and signal amplification, using transistors. Transistors have many uses, including for electronic switching. Do some reading on diodes and transistors, while bearing in mind that they use semiconductors.Yes. In electronic devices, semiconductors fulfill a variety of functions, including current filtering - a semiconductor diode only lets current pass in one direction - and signal amplification, using transistors. Transistors have many uses, including for electronic switching. Do some reading on diodes and transistors, while bearing in mind that they use semiconductors.Yes. In electronic devices, semiconductors fulfill a variety of functions, including current filtering - a semiconductor diode only lets current pass in one direction - and signal amplification, using transistors. Transistors have many uses, including for electronic switching. Do some reading on diodes and transistors, while bearing in mind that they use semiconductors.
How many transistors can fit in a microchip the size of a penny?
That depends:simple passive circuits have no transistorsvacuum tube circuits have no transistorssolid state circuits can have anywhere from no transistors (just diodes and/or magnetic amplifying transformers) to as many transistors as needed to perform the function
How does common emitter transistor show more temperature variation than common base transistors?
A transistor is made up of two diodes back-to-back. In a common base circuit - the load is shared between two diodes
