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Why can a PNP transistor be used as a power amplifier if it is connected into a circuit in a manner such as that shown in the book Electricity and Electronics Figure 52?
Wiki User
∙ 8y ago
The outout current will be less / much smaller than input current.
Wiki User
∙ 8y ago
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What is a Darlington transistor composed of?
The darlington configuration is two transistors connected in such a way that the gain (hFe) of the pair is higher than either transistor taken individually. The two collectors are connected together, and used as the collector of the pair. The base of the first transistor is the base of the pair. The emitter of the first transistor is connected to the base of the second transistor. The emitter of the second transistor is the emitter of the pair. Sometimes there is a resistor between the second base and the second emitter, so as to stabilize the pair in certain conditions. Typically, you multiply hFe's in darlington configuration, so if each transistor had an hFe of, say, 100, then the hFe of the pair would be 10,000.
You have no electricity in your house?
Yes, I have electricity in my house because my heat is on, my computer is on, and I am connected to the internet.
Does naked wire is cosume electricity when connected?
actually consumption of electricity depends on the material of wire , that means resistive capacity ....... that's why we can say that it does not depend naked or not.
What will happen to a buzzer connected to an open circuit?
The buzzer will not work because there will be no electricity going through it.
Why netral wire doesn't give electric shock?
Because it conducts electricity only when it is connected to a "live' wire.
When a PNP transistor is connected in a circuit it can be used as a power amplifier because?
A PNP transistor has no advantage or disadvantage over an NPN transistor in its ability as an amplifier. Rather, the current-handling capacities of the transistor determine if it's usable as an amplifier.
Difference between cascode and cascade amplifier?
cascade: the output of one amplifier stage is connected to the input of another amplifier stages, it's also connected in series. cascode: it said to be cascode, when it has one transistor on the top of another where a common emitter transistor drives a common base transistor.
What is the working of a Darlington amplifier?
it is a combination of two transistors connected in series. the emitter of transistor t1 is connected to the base of transistor t2 . now the total circuit acts as a single transistor. this combination will gives high gain, as the gain is multiplied.
When a pnp transistor is connected in a circuit you can be used as a power amplifier because?
the out put voltage will be much grater then the input voltage.
A PNP transistor is connected in a circuit so that the collector-base junction remains reverse biased and the emitter-base junction is forward biased This transistor can be used as a power amplifier?
Yes1
Why is npn transistor called emmitor follower?
In an NPN transistor an emiter follower refers to an amplifier topology. The emiter follower configuration is when the emitter of a N-Type Bipolar Junction Transistor (BJT) is connected to the common point on a circuit (typically ground). This is not always the case, however, because many amplifier configuration exist.
When a PNP transistor is connected in a circuit in the manner it can be used as a power amplifier because?
the output voltage will be much larger than the input voltage
When a PNP transistor is connected in certain circuit manner it can be used as a power amplifier because?
not sure if this is the answer : the output voltage will be much larger than the input voltage.
What is darlington configuaration?
A Darlington pair uses two transistors connected to behave as a single transistor with a very high current gain (beta). Transistor-1 has its collector connected to the collector of transistor-2. Transistor-1 has its emitter connected to the base of transistor-2. The base of transistor-1 with the emitter and collector of transistor-2 is used as a single transistor.
How do capacitors work in conjunction with transistors?
hi am just a newbie in a electronics but with the little knowledge i got, well, when a capacitor is connected with a transistor, the circuit can act like a multivibrator i.e charge and discharge to the transistor base as in timer circuit.When the capacitor is connected to the power supply e.g battery,it will charge to an extent that the charge in it will be equal to the charge the base of the transistor will need to turn the transistor on,say 0.7v and when the transistor is on then the collector will start work.NOTE:this process happens in milli seconds and also that i might be wrong somewhere so lets research more to get the answers.this is for my fellow newbies in ELECTRONICS.
Can you do amplification without transistor and is it possible to design oscillator using diode?
Magnetic amplifiers and vacuum tubes don't need transistors to amplificate electricity current. You can get a transistor by two oppositely connected diodes.
What is self biasing a transistor?
if a transistor resistor is connected to the emmiter .
