एक ट्रांजिस्टर के बीटा धारा अनुपात क्या है?

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RRB ALP CBT 2 Electronic Mechanic Previous Paper: Held on 23 Jan 2019 Shift 1
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  1. IC/IB
  2. IB/IE 
  3. IE/IC 
  4. IC/IE

Answer (Detailed Solution Below)

Option 1 : IC/IB
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Detailed Solution

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उभयनिष्ठ-एमिटर धारा लाभ (β) ट्रांजिस्टर के संग्राहक धारा और ट्रांजिस्टर के आधार धारा का अनुपात होता है, अर्थात्

\(β = \frac{{{I_C}}}{{{I_B}}}\)

Important Points

और उभयनिष्ठ आधार DC धारा लाभ (α) ट्रांजिस्टर के संग्राहक धारा और ट्रांजिस्टर के एमिटर धारा का अनुपात होता है, अर्थात्

\(α = \frac{{{I_C}}}{{{I_E}}}\)

ट्रांजिस्टर धारा निम्न संबंध द्वारा संबंधित हैं:

IE = IB + IC

अब α को निम्न रूप में लिखा जा सकता है:

\(α = \frac{{{I_C}}}{{{I_B+I_C}}}\)

अंश और हर दोनों को Iसे विभाजित करने पर, हमें निम्न प्राप्त होता है:

\(α = \frac{{{I_C/I_B}}}{{{1+I_C/I_B}}}\)

चूँकि \(β = \frac{{{I_C}}}{{{I_B}}}\)

\(α = \frac{β }{{β + 1}}\) 'या'

\(β = \frac{α }{{1-α}}\)

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