Physics, 27.09.2021 21:00 Madeline6117

Hai điện tích điểm đặt cách nhau 100 cm trong parafin có hằng số điện môi bằng 2 thì tương tác với nhau bằng lực 8N. Nếu chúng được đặt cách nhau 50 cm trong chân không thì tương tác nhau bằng lực có độ lớn là 5 do B. 32 N. C. 16 N. D. 48 N.

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Hai điện tích điểm đặt cách nhau 100 cm trong parafin có hằng số điện môi bằng 2 thì tương tác với n...

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