ISRO Scientist or Engineer Electronics 2013
Instructions
For the following questions answer them individually
Question 62
If $$\tau$$ is the time constant and $$\omega$$ is the applied frequency, a low pass RC filter acts as a pure integrator when:
Question 63
$$10 \mu F$$ capacitor is connected across secondary winding of a high frequency transformer having primary to secondary turns ratio 5:2. What is the value of capacitance seen across primary?
Question 65
For the current mirror circuit shown below, if the emitter area of Q2 is thrice of Q1, the current I is:
Question 66
Output of an Op-ampis 1V peak,and slew rate is $$ 5V/ \mu s$$. The maximum frequency of input sinusoidal signal that can be reproducedis:
Question 70
Given the output for the following non-inverting summing amplifier, the relation between $$R_f$$ and R in the circuit is:
