मराठी
महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

In a common-base connection, the emitter current is 6.28 mA and the collector current is 6.20 mA. Determine the common-base DC current gain.

Advertisements
Advertisements

प्रश्न

In a common-base connection, the emitter current is 6.28 mA and the collector current is 6.20 mA. Determine the common-base DC current gain.

संख्यात्मक
Advertisements

उत्तर

Data: The emitter current is IE = 6.28 mA.

The collector current is IC = 6.20 mA

`alpha_(dc) = I_C/I_E` 

⇒ `alpha = 6.20/6.28`

⇒ `alpha = 0.987`

The common base DC current gain is 0.987.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 16: Semiconductor Devices - Exercises [पृष्ठ ३६४]

APPEARS IN

बालभारती Physics [English] Standard 12 Maharashtra State Board
पाठ 16 Semiconductor Devices
Exercises | Q 20 | पृष्ठ ३६४

संबंधित प्रश्‍न

In a BJT, the largest current flow occurs ______.


In a common-base connection, a certain transistor has an emitter current of 10mA and a collector current of 9.8 mA. Calculate the value of the base current.


Derive the relation between α and β.


In a common base configuration, the transistor has an emitter current of 10 mA and a collector current of 9.8 mA. The value of base current is ______ 


Draw the circuit symbol 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?  


The output of the following circuit is 1 when the input ABC is


Explain the current flow in an NPN transistor.


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


What is rectification?


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 ______.


Ve, Vb, and Ve are emitter, base, and collector voltage respectively for npn transistor in CE mode. Amplifier works for the combination of biasing voltage equal to ______.


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


In switching circuit, transistor is in ON state, values of IE and lB are 10 mA and 0.8 mA respectively and RL is 2 k`Omega`. If VCE is 7.6 V, then VCC is ____________.


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


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


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


A transistor is connected in C - E mode. If collector current is 72 × 10-5 A and α = 0.96, then base current will be ______.


In common emitter amplifier, a change of 0.2 mA in the base current causes a change of 5 mA in the collector current. If input resistance is 2K `Omega` and voltage gain is 75, the load resistance used in the circuit is ______.


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 ______.


The reverse bias in a junction diode is changed from 8V to 13V, then the value of the current changes from 40μA to 60μA. The resistance of junction diode will be ______.


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 ______.


How is a transistor biased for operating it as amplifier?


In a CE amplifier, the current gain is 80 and the emitter current is 9 mA. The base current is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×