Basics of Measurements
Quick practice
Question 1 of 5
When 10V dc is applied to the vertical deflection plates of a cathode ray tube, the bright spot moves 1cm away from the center. If 20V (rms) ac is applied, then the movement of the spot will be nearly (no voltage is applied to the X-plates)
A
4 cm
B
A vertical line approximately 5.6 cm long
C
A vertical line 4 cm long
D
2 cm
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