GATE Electronics and Communications (EC) 2011 Solved Paper

Question : 53 of 65

Marks: +1, -0

For the BJT Q₁ in the circuit shown below, β = ∞, V_BEon = 0.7 V, VC_CEsat = 0.7 V. The switch is initially closed. At time t = 0, the switch is opened. The time t at which Q₁ leaves the active region is