Physics, 15.12.2021 17:00 beachgreentag
Cầu chì sẽ bị đứt ngay khi mật độ dòng điện qua dây chì là 450 A/cm2. Một động cơ điện có dòng điện giới hạn với cường độ là 10 A thì phải dùng dây chì có đường kính bao nhiêu để bảo vệ động cơ?
Answers: 2
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Cầu chì sẽ bị đứt ngay khi mật độ dòng điện qua dây chì là 450 A/cm2. Một động cơ điện có dòng điện...
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