For a transistor, the current amplification factor α is 0.8 . If it is connected in common emitter configuration, the change in collector current when the base current changes by 6 mA is

Question

For a transistor, the current amplification factor α is 0.8 . If it is connected in common emitter configuration, the change in collector current when the base current changes by 6 mA is (A) 6 mA (B) 4.8mA (C) 24 mA (D) 8 mA

Tardigrade Admin · Accepted Answer

Ic=((α /1 - α ))Ib=(0.8/0.2)Ib=4Ib Ic= collector current Ib= base current Ic=24mA

Q. For a transistor, the current amplification factor $α$ is $0.8$ . If it is connected in common emitter configuration, the change in collector current when the base current changes by $6 m A$ is

$6 m A$

$4.8 m A$

$24 m A$

$8 m A$

$I_{c} = (\frac{α}{1 - α}) I_{b} = \frac{0.8}{0.2} I_{b} = 4 I_{b}$
$I_{c} =$ collector current
$I_{b} =$ base current
$I_{c} = 24 m A$

Q. For a transistor, the current amplification factor α is 0.8 . If it is connected in common emitter configuration, the change in collector current when the base current changes by 6mA is

6mA

4.8mA

24mA

8mA