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

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

Advertisements
Advertisements

प्रश्न

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

बेरीज
Advertisements

उत्तर

Current amplification factor, β = `("I"_"c")/("I"_"B") = 15/0.5 = 30`

shaalaa.com
Bipolar Junction Transistor (BJT)
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 16: Semiconductors Devices - Very Short Answer

संबंधित प्रश्‍न

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.


The light emitted in an LED is due to


Transistor functions as a switch. Explain.


Describe the function of a transistor as an amplifier with the neat circuit diagram. Sketch the input and output wave forms.


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 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 ______


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 ______.


For a transistor, the current ratio 'βdc' is defined as the ratio of ______.


In the symbol for a transistor, the arrow head points in the direction of the ____________. 


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 ______.


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 ______.


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 ____________.


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


In case of npn transistors, the collector current is always less than the emitter current because ______.


For a common emitter configuration, if 'α' and 'β' have their usual meanings, the correct relationship between 'α' and 'β' is ______.


In a transistor, the thickness of the base region ____________.


In a transistor, doping level in base is increased slightly, the collector current and base current respectively ______.


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


For an ideal diode, the current in the following arrangement 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 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 ______ 


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, ______.


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 ______.


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 ______.


Define β


In a transistor (common emitter configuration) the ratio of power gain to voltage gain is (α and β are current ratios) ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×