2024 Paper - II Electronics and Telecommunication Engineering

A transistor with α = 0·98 and I_CBO = 5 μA is biased, so that I_BQ = 100 μA. What is the leakage current I_CEO ?

Which one of the following is correct for the circuit shown below ? [IMAGE] [IMAGE]

Consider the following statements regarding essential characteristics of a practical op-amp : 1. The open-loop voltage gain AOL is negatively infinite. 2. The input impedance between terminals 1 and 2 is infinitely large and the input current is zero. 3. The output impedance is zero and the output voltage is independent of the load. Which of the above statements are correct ?

Consider the following statements regarding common collector configuration : 1. The common-collector configuration is used primarily for impedance-matching purposes. 2. It has a high input impedance and low output impedance, opposite to that of the common-base configuration. 3. A common-collector circuit configuration is provided with the load resistor connected from emitter to ground. Which of the above statements are correct ?

I_DSS is the maximum drain current for a JFET and is defined by the conditions

In which one of the following is it used that the particular operating wavelength can be selected at the time of device fabrication by an appropriate choice of the reflector spacing ?