MCQ
While a collector to emitter voltage is constant in a transistor, the collector current changes by $8.2\, mA$ when the emitter current changes by $8.3\, mA.$ The value of forward current ratio hfe is
- ✓$82$
- B$83$
- C$8.2 $
- D$8.3$
✓
Answer
Correct option: A.
$82$
a
(a)${h_{fe}} = {\left( {\frac{{\Delta {i_c}}}{{\Delta {i_b}}}} \right)_{{V_{ce}}}} = \frac{{8.2}}{{8.3 - 8.2}} = 82$
(a)${h_{fe}} = {\left( {\frac{{\Delta {i_c}}}{{\Delta {i_b}}}} \right)_{{V_{ce}}}} = \frac{{8.2}}{{8.3 - 8.2}} = 82$
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