GATE 2025 Analog Circuits Quiz 7

In the circuit shown below, the Zener diode is ideal and the Zener voltage is 6V. The output voltage V₀ (in volts) is ____________.

Consider the voltage series regulator circuit as shown in figure below. Assume that transistors are in active region with V_BE = 0.7V & β = 50. If the Zener diode is working in breakdown region with then the output voltage is

A silicon transistor with V_BE(sat)=0 .8 V, β=h_fe=100, V_CE=0 .2 V is used in the circuit shown. The maximum value of R_C for which transistor remain in saturation is ______ kΩ

In the given circuit NPN transistor has very high value of β. The required R_Z in KΩ to have 2 mA is.

In the circuit shown, transistors Q1 and Q2 are biased at a collector current of 2.6mA. If transistor current gains are sufficiently large to assume collector current equal to emitter current and thermal voltage of 26 mV, the magnitude of voltage gain V₀/V_s in the mid-band frequency range is __________ (up to second decimal place).