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Position knob in a CRO indicates ________

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Position knob in a CRO indicates ________

(a) voltage position only

(b) time position only

(c) current position only

(d) any pattern’s position

I had been asked this question during an interview.

The above asked question is from Front Panel Controls of CRO topic in portion Oscilloscopes of Electrical Measurements

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Best answer
Correct choice is (d) any pattern’s position

Best explanation: In a Cathode Ray Oscilloscope the position knob is used for indicating the position of any pattern on the screen. The pattern can be shifted vertically upwards or downwards.

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