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In a robot arm performing repetitive welding, which consequence results when joint encoder resolution is insufficient?

A)Accumulated positional error increases
B)Excessive motor current draw happens'
C)Joint lubrication wears faster
D)Controller CPU overheats faster

💡 Explanation

Insufficient encoder resolution leads to imprecise joint angles, and, over many cycles, positional error accumulates due to poor **feedback control**, because adjustments are not granular enough. Therefore, accuracy degrades, rather than causing electrical or thermal problems due to incorrect positioning.

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