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The common-base DC current gain of a transistor is 0.967. If the emitter current is 10mA. What is the value of base current?

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प्रश्न

The common-base DC current gain of a transistor is 0.967. If the emitter current is 10mA. What is the value of base current?

संख्यात्मक
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उत्तर

Given:

Current gain (α) = 0.967

Emitter current = 10mA

To Find:

The value of base current of the transistor =?

Solution:

  • The common gain DC current us is given by
    α = 0.967 = `"I"_"C"/"I"_"E"="I"_"C"/10`
    IC = 0.967 × 10
    IC = 9.67mA
  • The base current of the transistor is given by the formula
    IE = IB + IC
    10 = IB + 9.67
    IB = 0.33mA

The value of base current of the transistor is 0.33mA

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अध्याय 16: Semiconductor Devices - Exercises [पृष्ठ ३६४]

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बालभारती Physics [English] Standard 12 Maharashtra State Board
अध्याय 16 Semiconductor Devices
Exercises | Q 18 | पृष्ठ ३६४

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