एक स्थिर बायस परिपथ के लिए बायस स्थिरता कारक (S) क्या है?

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RRB JE EE 22 Apr 2025 Shift 1 CBT 2 Official Paper
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  1. S = (1 + β) / (1 + β + β^2)
  2. S = (1 + β)
  3. S = β / (1 + β)
  4. S = 1 / (1 + β)

Answer (Detailed Solution Below)

Option 2 : S = (1 + β)
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संप्रत्यय

स्थिरता कारक (S): स्थिरता कारक ICBO के सापेक्ष संग्राहक धारा IC के परिवर्तन की दर से निर्धारित होता है।

\(S= \frac{\partial I_C}{\partial I_{CBO}}\)

एक स्थिर बायस परिपथ के लिए स्थिरता कारक:

F1 Madhuri Engineering 23.02.2023 D12

\(I_C = β I_B \space +\space (1+\beta)I_{CBO}\)

\(S= \frac{\partial {(β I_B \space +\space (1+\beta)I_{CBO})}}{\partial I_{CBO}}\)

चूँकि IC एक स्थिर बायस (कोई प्रतिपुष्टि नहीं) में ICBO से स्वतंत्र है, इसका व्युत्पन्न 0 है।

\(S= 0+(1+\beta)\times 1\)

S = (1 + β)

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