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What is hie for a transistor?
hie is input impedance when signal applied at its base.
Is there a transistor that turn on when there is no current on base and turn off when there is no current?
Yes, a transistor can be configured to operate in such a manner using a specific circuit design. A common example is a relay driver circuit with a normally closed relay, which can be designed to turn on without base current and turn off when base current is applied. Additionally, certain types of bistable multivibrator circuits can achieve similar functionality by utilizing feedback to maintain their state until an external signal is applied.
What happens when high input signal is given to pnp transistor?
A high signal input to a transistor amplifier gives a high signal output provided it stays linear.
Why output current exist in common base configuration of a transistor even when no input is applied?
In a common base configuration of a transistor, output current exists even when no input is applied due to the transistor's inherent properties and biasing conditions. When the transistor is properly biased, a small base-emitter current flows, which allows for the flow of a larger collector current, resulting in an output current. Additionally, even in the absence of a direct input signal, thermal noise and leakage currents can contribute to a non-zero output current. Thus, the transistor can still conduct due to its internal characteristics and biasing.
When transistor acts as an amplifier then does its output voltage increase or decrease?
That depends on both the input signal and the type of amplifier the transistor is used in.
Why is a transistor an active element?
Transistor is an active element because it can amplify the signal applied.
What is hie for a transistor?
hie is input impedance when signal applied at its base.
Different between power transistor and transistor that used in small signal?
Power transistor can conduct large amount of currents through it, more than small signal transistor. power transistor has a vertical structure and small signal transistor has horizontal structure.In power transistor quasi saturation region is present which is absent in the small signal transistor. In power transistor there is a inculsion of drift layer which is not there in the small signal transistor. Power dissipation is less in power transistor and it is more in small signal transistor. b.v.polytechnic,vasai pushkar vaity.
What is Q point of a transistor?
Q point which is quiscent (silent) point is the operating point of a transistor where the variations of collector current and collector-emitter voltage take place when signal is applied.
Can transistor be used to increase the strength of an ac signal?
Yes, a transistor can amplifiy an a.c. signal.
Is there a transistor that turn on when there is no current on base and turn off when there is no current?
Yes, a transistor can be configured to operate in such a manner using a specific circuit design. A common example is a relay driver circuit with a normally closed relay, which can be designed to turn on without base current and turn off when base current is applied. Additionally, certain types of bistable multivibrator circuits can achieve similar functionality by utilizing feedback to maintain their state until an external signal is applied.
How is current amplified in a transistor?
Transistor increase the strength of a weak signal from the base
What is unmodulated signal from a transistor is called?
When the out from a transistor is the exact replic of the input signal then it is called unmodulated signal i e. there will not be any change in frequency voltage power etc
What happens when high input signal is given to pnp transistor?
A high signal input to a transistor amplifier gives a high signal output provided it stays linear.
How do you convert npn signal to pnp signal?
To convert an NPN signal to a PNP signal, you can use an inverter circuit, typically implemented with a transistor or a logic gate. For a simple transistor-based solution, connect the NPN transistor's collector to the power supply, its emitter to the load, and the base to the NPN signal through a resistor. When the NPN is on (high signal), it will turn off the PNP transistor, resulting in a low output, and vice versa, effectively inverting the signal.
What is the work of transistor?
The work of a transistor is to amplify the input signal to get high output value.
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)
