Question

What is the wait time in a CRO?

(a) time to deactivate time base generator

(b) time to activate time base generator

(c) time from input to output

(d) time from output to input

This question was posed to me in class test.

The question is from Principle of Time Base Generator topic in chapter Oscilloscopes of Electrical Measurements

Answer 1

The correct option is (b) time to activate time base generator

Explanation: In a Cathode Ray Oscilloscope, the trigger circuit produces a trigger pulse. The pulse must exceed a certain reference threshold level in order to activate the time base generator. This is known as trigger threshold.