SSC JE Electrical Engineering 2017 Set 2 Paper

‘B’ gain of the transistor, Application capability of the transistor.
$\mathit{B}=\frac{{\mathit{I}}_{\mathit{C}}}{{\mathit{I}}_{\mathit{B}}}$
${\mathit{I}}_{\mathit{C}}$ = Collector current
${\mathit{I}}_{\mathit{B}}$ = Base current
→Let B = 100
If Input base current ${\mathit{I}}_{\mathit{B}}=30\mathit{\mu }\mathit{A},$ the out put collector current amplify the Input base current by 100 times i.e.
${\mathit{I}}_{\mathit{C}}=30\mathit{\mu }\times 100=3\times {10}^{\mathit{–}3}\mathit{A}.$