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Most probable junction in transister is base emiter

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โˆ™ 2008-12-06 12:01:47
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Q: What is the most probable junction in transistor maintenance circuits and is it base or base and collector or emitter and collector?
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Related questions

How do you find out which are the emitter and collector of an NPN transistor?

We can determine which are the emitter and collector of an NPN transistor because the base-emitter junction is forward biased while the base collector junction is reverse biased.

A transistor is in active region when?

a transistor in active region when emitter junction is forward biased nd collector junction is reverse biased

How do you know if a transistor is a PNP or an NPN?

To know if a transistor is PNP or an NPN,the following should be verified:For a PNP transistor, the base-collector junction is forward biased while the base-emitter junction is reversed biased.For an NPN transistor, the base-emitter junction is forward biased while the base -collector junction is reversed biased.

What are the leads of a transistor called?

For a bipolar junction transistor: * Emitter * Collector * Base For a field-effect transistor: * Drain * Source * Gate

What is common collector bipolar junction?

A circuit in which the input signal is applied to its base and the collector is earthed (grounded) is known as common collector configuration of BJT (BiPolar Junction Transistor)

What bias conditions must be present for the normal operation of a transistor ampilifier?

Assuming you mean a bipolar junction transistor (BJT): 1. Reverse bias on the collector-base junction. 2. Forward bias on the base-emitter junction, that is 3. Sufficient to give the correct operating point of collector voltage/collector current.

What is the biasing technique in transistor for it to be in active region?

For a transistor to be in active region : Base Emitter junction should be forward biased and Emitter collector junction should be reverse biased.

What are the three current in the Bipolar Junction Transistor?

Base-Emitter CurrentCollector-Emitter CurrentBase-Collector Current

Why do you have to connect a resistor to collector of transistor?

Type your answer here... to properly bias the junction for current flow thru the transistor. The voltage potential must be different on the base than the collector

How do a transistor works as a switch?

Transistor operates as a switch by providing minute forward bias voltage or no voltage between base emitter junction. If forward bias is zero volts; transistor collector current becomes zero or collector impedance becomes infinite. By applying minute forward bias voltage at base emitter junction, collector current flows in terms of amps. This is how transistor works as a switch.

Why a transistor can be operated in active region?

a transistor can only work in active region cox in active region collector base junction is in reverse bias and emitter base junction is in forward bias.

Why is the base current in bipolar junction transistors so much less than the collector current?

By design. The whole IDEA of this type of transistor is for one current to control another one - thus, the transistor can be considered to be a type of amplifier, and it can indeed be used in amplifier circuits.

What is the characteristic of NPN transistor?

The characteristic of NPN transistors is :The base-emitter junction is reversed biased.The base-collector junction is forward biased.

What separates the three regions in a BJT?

Two junctions namely emitter-base junction and collector-base junction separates regions in a transistor.

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?


How transistor is used as rectifier?

A transistor is, from a modeling standpoint, a controllable diode. The forward conduction curve of the collector-emitter junction is a function of the base-emitter current. (This assumes we are talking about the common bipolar junction transistor, or BJT.) Theoretically, then, you could use a transistor as a controllable rectifier. If you drive the base into saturation, then you could "think" of the collector-emitter as a diode.However, the collector-emitter junction voltage drop is not the same as a true diode, as efficiency and power dissipation would be different than for a diode. It comes down to what you want to do.

What will be the collector current of emitter base junction of a transister is reversed?

The question is poorly phrased and needs a grammatical cleanup. If you mean to ask "what happens to the collector-emitter current of a transistor when the emitter-base junction is reverse biased" then the answer is that the transistor will turn off, and you will only see leakage current.

What is the biasing requirement for the of the junctions of a transistor for its normal operation Explain how these requirements are met in a common emitter amplifier?

In a transistor for normal operation , emitter base junction is forward biased and collector base junction is reverse biased.

Why ordinary transistor is known as bipolar junction transistor?

Transistor is known as bipolar junction becoz it has 2 pole. Input is given to the 2 junction and output is taken from to junction

How should the two transistor junctions be biased for proper transistor amplifier operation?

Emitter-Base junction should be forward biased.Collector-Base junction should be reverse biased.

What types of transistors are the following - BJT PCT UJT SBT FET GJT AJT DFT?

The BJT is the bipolar junction transistor, the PCT is the point contact transistor, the UJT is the uni-junction transistor, the SBT is the surface barrier transistor, the FET is the field effect transistor, the GJT is the grown-junction transistor, the AJT is the alloy-junction transistor, and the DFT is the drift field-junction transistor.

Why is the collector of a transistor connected to the base or heatshink?

Because most of the heat buildup occurs in the reverse biased collector-base junction where Ic = Ie + Ib flows.

What is PNP?

it is a bipolar junction transistor having p-type emitter & collector terminal and , n-type base terminal .

How do you determine emitter and collector of a transistor?

For the identification of the transistor leads when you were only given with a resistance measuring device follow this we know that irrespective of the first and the third leads the middle one always represents base. now measure resistance between 1-2 and 2-3 (say a and b)we know that for any transistor the emitter -base junction is forward biased and the base-collector junction is reverse biased. So, we can conclude that emitter-base junction has a very low forward resistance when compared to the large values of collector base if ,a>b --- 1-collector, 2-base, 3-emittera

What bias conditions must be present for the normal operation of a transistor amplifier?

The emitter-base junction must be forward biased, and the collector-base junction must be reverse biased.