30) In an Operational amplifier integrator, the current through the input resistor flows into the

31) If the input frequency of a bridge rectifier is 100Hz, its output frequency will be

32) An ideal voltage step up transformer with 4:1 turns ratio is connected to a 120V input supply. What will be the current through 100 ohm load resistor at the secondary?

33) Calculate the frequency of the pulse train with 2 ms ON time and 3 ms OFF time.

34) Which of the following is not an LC oscillator?