46. A certain oscillator has a tap on the inductor in the tank circuit. This oscillator is probably ________.
(a) a Colpitts oscillator.
(b) a Clapp oscillator.
(c) a crystal oscillator.
(d) a Hartley oscillator.
47. Nota
48. Nota
49. An op-amp integrator has a square-wave input. The output should be ________.
(a) a sine wave.
(b) a triangle wave.
(c) a square wave.
(d) pure dc.
50. Nota
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