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BITSAT 2010
Exam
BITSAT
Year
2010
Subject
Physics
Chapter
Semiconductors

BITSAT 2010 · Physics · Semiconductors

A transistor has a base current of 1 mA and emitter current 90 mA ....

A transistor has a base current of 1mA1 \mathrm{ mA} and emitter current 90mA90 \mathrm{ mA}. The collector current will

Options

  1. A90mA90 \mathrm{ mA}
  2. B1mA1 \mathrm{ mA}
  3. C89mA89 \mathrm{ mA}
  4. D91mA91 \mathrm{ mA}

Correct answer

C. 89mA89 \mathrm{ mA}

Step-by-step solution

\quad\mathrm{I}C=_{\mathrm{C}}=\mathrm{I}E−_{\mathrm{E}}-\mathrm{I}B=90−1=89mA_{\mathrm{B}}=90-1=89 \mathrm{ mA}
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