Final answer:
In dry air, electrostatic effects are easier to achieve, while torn paper is more attractive to a charged comb due to its irregular edges.
Explanation:
Electrostatic effects are easier to achieve in dry air compared to moist air. This is because moisture in the air can help dissipate charges, making it harder to build up static electricity. Torn paper is more attractive to the comb than cut paper due to its irregular edges that allow for better interaction with the charged comb, leading to enhanced attraction.
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