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A silicon transistor needs about 0.65 v of forward bias on the base to begin to conduct.
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∙ 9y ago
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How do you find the forward voltage of a diode?
A Transistor can be biassed in two ways Forward bias and Reverse bias A transistor is said to be forward bias if the positive of the transistor is connected to the positive terminal of the battery and negative to the negative terminal of the battery.A Transistor in the converse condition is known as reverse biassed
Why is it necessary to bias a transistor when it is to be used as an amplifier?
Biasing is necessary in a transistor circuit to keep the transistor working. Without proper biasing, the circuit will fail
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.
What determines the amount of potential required to forward bias a unijunction transistor?
Intrinsic Stand-off Ratio
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
What is transistor as a 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'.
Why do you consider it necessary to bias transistor?
Why do you consider it neccessary to bias transistor?
How do you find the forward voltage of a diode?
A Transistor can be biassed in two ways Forward bias and Reverse bias A transistor is said to be forward bias if the positive of the transistor is connected to the positive terminal of the battery and negative to the negative terminal of the battery.A Transistor in the converse condition is known as reverse biassed
How many volts do you need for a transistor to be fully on?
A: By saturating a transistor meaning forward bias the base to emitter the voltage across the collector and base should be very low . depending on current it can be .050 v to .5v reversing or removing the bias voltage this voltage should be the same as the rail
Why is it necessary to bias a transistor when it is to be used as an amplifier?
Biasing is necessary in a transistor circuit to keep the transistor working. Without proper biasing, the circuit will fail
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.
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.
What will happen if no applied bias In forward bias and reverse bias?
If no forward or reverse bias is applied from outside then the diode or transistor(I'm not sure for which did you ask) is in internal equilibrium. thus there's a field created in each junction which prevents the flow of charges across it..
Can you call forward bias voltage as positive voltage?
it is not necessary that always positive voltage should act as a forward bias voltage , it is the potential difference between cathode and anode that makes it forward or reverse biased .it the anode(p- doped material) positive with respect to cathode(n- doped material) --> forward biasedit the anode(p- doped material) negative with respect to cathode(n- doped material) --> reverse biasedex.anode - 5v cathode - 3vanode - 1v cathode - -2vboth the examples are forward biased.
What is the voltage drop of an ideal diode?
forward bias 0 volts, reverse bias infinity volts.
What determines the amount of potential required to forward bias a unijunction transistor?
Intrinsic Stand-off Ratio
Is it true or false and why 1-There are no effect for transition capacitance under forward bias 2- For CE configuration if outport voltage increase the input current will be decrease?
Q1: A PN juncrion has to be reverse-biased for a transiton capacitance to exist. In forward bias there is no depletion layer and the junction conducts, so it does not behave as a capacitance. Q2: In a common-emitter circuit the ouput voltage appears across a resistor connected between the collector and the positive rail (for a normal NPN transistor). Therefore when the current through the transistor increases, there is more voltage drop across this resistor and the collector voltage has to fall.
