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sketch time period measurement by CRO.
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Horizontal sweep is turned ON and the display appealing on the screen is adjusted by varying different control knobs provided on the front panel of CRO, till the signal is suitably displayed on the screen. After obtaining the display of good deflection, count the number of horizontal division for a complete cycle. From the counted horizontal divisions, the time period is computed 


as,

T=m*n

Where

m=Number of division in one complete cycle

n=Setting of time base =Time/Division

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