Question

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 h_fe is

• A. 82
• B. 83
• C. 8.2
• D. 8.3

Answer 1

Answer: (A)

82

Answer 2

$h_{fe} = \left( \frac{\Delta i_{c}}{\Delta i_{b}} \right)_{V_{ce}} = \frac{8.2}{8.3 - 8.2} = 82$