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In a transitor (Beta = 50), the voltage ...

In a transitor `(Beta = 50)`, the voltage across `5 kOmega` load resistance in collector circuit is `5V`. The base current is

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Change in the collector current `Delta I_C = Delta V //R_L`
But `beta = ( Delta I_C )/( Delta I_B) `
` Delta I_B = (Delta I_C ) /( beta) = (10^(-3))/(45) = 0.022 mA .`
Change in base current `( Delta I_B ) = 0.022mA`
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