Q31. The input impedance of good Op amp is expected to be of the order of

Q32. If the ground is applied to the positive terminal of an inverting of amp then negative terminal will

Q33. The input impedance of the operational amplifiers is

Q34. A 741-type Op amp has a gain-bandwidth product of 1MHz. A non-inverting amplifier using this Op amp & having a voltage gain of 20 db will exhibit -3db bandwidth of

Q35. Schmitt trigger can be used as

Q36. The op-amp based schmitt Trigger circuit is used as ____.

Q37. Which of the following circuits is used as a comparator?

Q38. An astable multivibrator can be triggered

Q39. A woofer should be fed from the input through a

Q40. Magnetic amplifiers have the drawback(s) of