JEE Main 2019 — Physics solution

JEE Main2019Physics

In the figure, given that $V_{B B}$ supply can vary from 0 to 5.0 V, V_CC= 5V, $β_{d c} = 200,$ , $R_{B} = 100 K Ω$ , $R_{C} = 1 K Ω$ and $V_{BE} = 1 .0V$ The minimum base current and the input voltage at which the transistor will go to saturation, will be respectively:

A
25 $μ$ A and 3.5 V
B
20 $μ$ A and 2.8 V
C
25 $μ$ A and 2.8 V
D
20 $μ$ A and 3.5 V

Solution

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