Physics, 23.06.2021 19:00 elijahcraft3
4. Một nguồn điện ba pha đối xứng nối hình sao, điện áp ba pha nguồn Up = 220V. Nguồn điện cung cấp cho tải 3 pha đối xứng nối tam giác. Biết dòng điện dây Id = 10A. Tính điện áp dây, dòng điện pha của tải và của nguồn.
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Physics, 21.06.2019 17:00
Which type of current is produced by a wire breaking magnetic field lines and changing the polarity? a. alternating b. direct c. straight d. alternating and direct
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Physics, 22.06.2019 17:00
Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?
Answers: 2
Physics, 22.06.2019 23:00
As seen in a us weather map, the h (or high) and l (or low) symbols indicate regions where surface air pressures are high or low, respectively, compared to surrounding areas. an h is plotted where the air pressure is highest and an l is plotted where the air pressure is lowest. proceeding outward and away from the center of a high pressure system, the air pressure "
Answers: 1
4. Một nguồn điện ba pha đối xứng nối hình sao, điện áp ba pha nguồn Up = 220V. Nguồn điện cung cấp...
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