Electronics & Communication Engineering - Pulse And Digital Circutes

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49.

________ Are basically regenerative circuits comprising of two cross coupled active devices                        


A. filters B. Multivibrators
C. Attenuators D. Clampers




50.

the response of step input to a low pass RC circuit is                        


A. V e-t/RC B. V(1- et/RC )
C. V et/RC D. V(1- e-t/RC )




51.

for DC input signal capacitor C acts as a                        


A. Open ckt B. Short circuit
C. Both D. None




52.

electron volt equalent temp Vt =___________                        


A. T/1160 B. T/k
C. T/e D. e/T




53.

The breakdown occurring due to direct rupture of bonds because of existence of strong electric field is                        


A. avalanche breakdown B. Zener breakdown
C. Forward breakdown D. None




54.

smallest times between two successive triggers is__________                        


A. Restoring time B. Storage time
C. Delay time D. Rise time




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