हिंदी

In a BJT, the largest current flow occurs ______. - Physics

Advertisements
Advertisements

प्रश्न

In a BJT, the largest current flow occurs ______.

विकल्प

  • In the emitter

  • In the collector

  • In the base

  • Through CB junction

MCQ
रिक्त स्थान भरें
Advertisements

उत्तर

In a BJT, the largest current flow occurs in the emitter.

Explanation:

Emitter is a thick, heavily doped layer. This supplies a large number of majority carriers for the current flow through the transistor

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 16: Semiconductor Devices - Exercises [पृष्ठ ३६३]

APPEARS IN

बालभारती Physics [English] Standard 12 Maharashtra State Board
अध्याय 16 Semiconductor Devices
Exercises | Q 1.1 | पृष्ठ ३६३

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?


In a transistor amplifier, IC = 5.5 mA , IE = 5.6 mA. The current amplification factor β is ______ 


Explain the working of the PNP transistor? 


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


With the help of a neat diagram, explain the working of the npn transistor?  


With the help of a neat circuit diagram, explain the transistor as an amplifier? 


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


Explain the current flow in an NPN transistor.


What is rectification?


In a common emitter amplifier, the input resistance is 1000 Ω, the peak value of Input signal voltage is 5 mV, and β = 60. The peak value of output current is


A transistor having α = 0.8 is connected in common emitter configuration. When the base current changes by 6 mA, then the change in collector current is ______.


In switching circuit, transistor is in ON state. Values of Iand IB are 5.2 mA and 10 µA respectively and value of RC is 1 k`Omega`. If Vcc is at 5.5 V, then VCE is ______.


In an npn transistor, the base current is 100 µA and the collector current is 10 mA. The emitter current is ______.


ln switching circuit, transistor is in ON state and values of IC and IB are 4.2 mA and 5 µA respectively and RC= l k`Omega` and RB= 300 k`Omega`. If VBE = 0.5 V, find the value of VBB.


A transistor when connected in common emitter mode has a ____________.


A change of 9.0 mA in the emitter current brings a change of 8.9 mA in the collector current. The value of current gain β will be ______.


A transistor having α = 0.8 is connected in a common emitter configuration. When the base current changes by 6 mA, the change in collector current is ______ 


A common emitter amplifier has a voltage gain of 50, an input impedance of 100Ω and an output impedance of 2000Ω. The power gain of the amplifier is ______.


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 base current in common emitter mode of the transistor changes by 10 µA. If the current gain of the transistor is 50, then change in collector current is ______.


The transfer ratio of a transistor is 50. The input resistance of the transistor when used in the CE configuration is 1K Ω. The peak value for an AC input voltage of 0.01 V of collector current is ______.


Define α.


Define β


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×