47. An Op-Amp circuit which converts sine wave signal into square wave signal :
(A) Multivibrator (B) Wein bridge oscillator
(C) Schmitt trigger (D) Integrator
48. FIR filters will have transfer function with :
(^) Only poles (B) Only zeroes
(C) Poles and zeroes (D) Only constants
49. The time period of free running multivibrator output cycle of 555 astable multivibrator is :
(A) 1.4/RatRb)C1 (8) 693/(Rat+2Rb)C1
(0) 0.693*(Rat+2Rb)C1 ൯൬) 1.4*(Ra+2Rb)....
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