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Physics, 14.06.2021 16:20 dsaefong00
Hai quả cầu nhỏ, bằng kim loại, giống hệt nhau, tích điện Q1 và Q2, đặt tại A và B, lần lượt gây ra tại trung điểm M của AB các điện thế V1 = 200 V và V2 = – 300 V (gốc điện thế ở vô cùng). Nếu cho 2 quả cầu tiếp xúc nhau, rồi đưa về vị trí cũ thì điện thế tổng hợp tại M là bao nhiêu
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The dipole moment of the water molecule (h2o) is 6.17x10^-30 c.m. consider a water molecule located at the origin whose dipole moment p points in the +x-direction. a chlorine ion ( of charge-1.60x10^-19c , is located at x=3.00x10^-9m . assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used. a) find the magnitude of the electric force that the water molecule exerts on the chlorine ion. b) what is the direction of the electric force. -x-direction or +x-direction c) is this force attractive or repulsive?
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Hai quả cầu nhỏ, bằng kim loại, giống hệt nhau, tích điện Q1 và Q2, đặt tại A và B, lần lượt gây ra...
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