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

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 ______

Advertisements
Advertisements

प्रश्न

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 ______ 

पर्याय

  • 0.1 mA

  • 0.2 mA

  • 0.3 mA

  • 0.4 mA

MCQ
रिकाम्या जागा भरा
Advertisements

उत्तर

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 the base current is 0.2 mA.

Explanation:

Let Ie​ be emitter current Ib​ be base current and Ic​ be collector current.

Ie​ = Ib ​+ Ic

10mA = Ib ​+ 9.8mA

Ib​ = 0.2mA.
shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 16: Semiconductors Devices - MCQ’S

संबंधित प्रश्‍न

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? 


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


Transistor functions as a switch. Explain.


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.


In the circuit shown in the figure, the BJT has a current gain (β) of 50. For an emitter-base voltage VEB = 600 mV, calculate the emitter-collector voltage VEC (in volts).


A common emitter amplifier is designed with n-p-n transistor (α = 0.99). The input impedance is 1 kΩ and the load is 10 kΩ. The voltage gain will be ______


If l1, l2, l3 are the lengths of the emitter, base and collector of a transistor, then ____________.


Least doped region in a transistor ____________.


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 ______.


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 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.


In a transistor in CE configuration, the ratio of power gain to voltage gain is ____________.


In a transistor, a change of 8.0 mA in the emitter current produces a change of 7.8 mA in the collector current. Then change in the base current is ____________.


In transistor amplifier, base-emitter junction is forward biased and collector emitter junction is reverse biased. The current gain is ______.


In common emitter mode of transistor, the d.c. current gain is 20, the emitter current is 7 mA. The collector current 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 ______.


A conducting wire has length 'L1' and diameter 'd1'. After stretching the same wire length becomes 'L2' and diameter 'd2' The ratio of resistances before and after stretching is ______.


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


In a p-n-p transistor circuit, the collector current is 10 mA. If 90% of the holes emitted from the emitter reach the collector, ______.


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 ______.


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 ______.


Explain the working of the n-p-n transistor in a common base configuration.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×