Question 201: Semiconductors and Logic Gates

Question

For a transistor amplifier in common emitter configuration for load impedance of $$1k\,\Omega $$ $$\left( {{h_{fe}} = 50} \right.$$ and $$\left. {{h_{oe}} = 25} \right)$$ the current gain is

Accepted Answer

In common emitter configuration current gain
$${A_i} = {{ - h{f_e}} \over {1 + {b_{0c}}{R_L}}}$$
$$ = {{ - 50} \over {1 + 25 	imes {{10}^{ - 6}} 	imes 1 	imes {{10}^3}}}$$
$$ =  - 48.78$$

Answer

$$-24.8$$

Answer

$$-15.7$$

Answer

$$-5.2$$

Answer

$$-48.78$$

Semiconductors and Logic Gates

For a transistor amplifier in common emitter configuration for load impedance of $1k\,\Omega \left( {{h_{fe}} = 50} \right. and \left. {{h_{oe}} = 25} \right)$ the current gain is

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