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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Draw the circuit symbol of the PNP transistor.

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प्रश्न

Draw the circuit symbol of the PNP transistor. 

आकृती
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उत्तर

The circuit symbol of the p-n-p transistor  

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 16: Semiconductors Devices - Very Short Answer

संबंधित प्रश्‍न

Why is the base of a transistor made thin and is lightly doped?


Why are the emitter, the base, and the collector of a BJT doped differently?


The common-base DC current gain of a transistor is 0.967. If the emitter current is 10mA. What is the value of base current?


For a transistor IC = 15 mA, IB = 0.5 mA. What is the current amplification factor?  


Draw the circuit symbol for NPN and PNP transistors. What is the difference in the Emitter, Base, and Collector regions of a transistor? 


The principle based on which a solar cell operates is ____________.


Give the Barkhausen conditions for sustained oscillations.


Explain the need for a feedback circuit in a transistor oscillator.


Sketch the static characteristics of a common emitter transistor and bring out the essential features of input and output characteristics.


Assuming VCEsat = 0.2 V and β = 50, find the minimum base current (IB) required to drive the transistor given in the figure to saturation.


A transistor of α = 0.99 and VBE = 0.7 V is connected in the common-emitter configuration as shown in the figure. If the transistor is in the saturation region, find the value of collector current.


A transistor has a voltage gain A. If the amount βA of its output is applied to the input of the transistor, then the transistor becomes oscillator, when ______.


The condition to convert an amplified signal into an oscillating signal is ______


In the study of transistor as an amplifier, the ratio of collector current to emitter current is 0.98 then the ratio of collector current to base current will be ______.


If `alpha`-current gain of a transistor is 0.98. What is the value of `beta`- current gain of the transistor?


In an npn transistor, the collector current is 24 mA. If 80% of electrons reach collector, its base current in mA is ______.


Which of the following regions of a transistors are, respectively, heavily dopped and lightly dopped?


In a silicon transistor, a change of 7.89 mA in the emitter current if produces a change of 7.8 mA in the collector current, then the base current must change by ____________.


In the case of transistor, the relation between current ratios αdc and βdc is ______.


In a study of transistor as an amplifier, the ratio of collector current to emitter current is 0.98. The collector current is 3mA, then base current will be approximately ______.


For a transistor,  αdc and βdc are the current ratios, then the value of `(beta_"dc"-delta_"dc")/(alpha_"dc".beta_"dc")` 


A common emitter amplifier circuit built using an n-p-n transistor is shown in the figure. Its DC current gain is 300, RC = 4 kΩ and VCC = 20 V. What is the minimum base current for VCE to reach saturation?

 


The current amplification factor for a transistor in its common emitter mode is 50. The current amplification factor in the common base mode of the transistor is ______.


The collector current in a common-emitter transistor amplifier is 4 mA. When the base current is increased by 20 µA, the collector current increases to 6 mA. The current gain is ______.


Define β


In the case of constants ‘α’ and ‘β’ of a transistor ______.


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