https://lazi.vn/edu/exercise/tim-so-chi-cua-von-ke
Mọi người vào link này rồi giúp mình với nhé.Mình gấp lắm rồi
Chi dung cac dung cu: 1 thuoc go thang loai 50mm, 1 qua can tuy chon trong hop, 1 chiec duc thep, 1 soi day, 1binh dung nuoc. Hay xac dinh the tich cua chiec duc
De trang tri cho quay hang nguoi ta dung n bong den loai ̉̉̉̉̉̉̉̉6v-12w mac thanh mot so day noi tiep roi mac song song voi nhau vao hieu dien the 220v nhan thay neu mac thanh 2 hay 3 day deu nhau thi chi can 1 dien tro phu r chung cho cac day la cac den sang binh thuong. Hoi so bong den la bao nhieu va gia tri dien tro r, mac theo cach nao thi loi hon? Mong moi nguoi giup mik
Tren 2bong den ghj (110v-60w)(110v-75w)
a) Biet rang day toc hai bong den lam bang vonfam va tiet dien bang nhau.Hoi day toc nao lon hon va lon hon bao nhieu
b) co the mac hai bong den nay vao hieu dien the 220v dc ko ? Vi sao
Cho nguon dien co hieu dien the ko doi, 1 ampe ke ko li tuong, 1 von ke ko li tuong, 1 dien tro va 1 so day noi. Hay thiet ke thi nghiem xac dinh dien Ra cua ampe ke va Rv cua von ke va dien tro R
Day Nicrom dien tro suat 1.1.10-6 Ωm .Co chieu dai 10m, tiet dien 0.5mm2. Hieu dien the dat vao 2 dau day la 24V . Tinh dien tro cua day va Cuong do dong dien qua day.
neu tiet dien tang 2 lan tiet dien giam 3 lan thi dien tro tang hay giam va may lan
Giup Minh Giai bai 2 voi bai 3 duoc khong
cho mach dien nhu hinh ve hdt hai dau doan mach U= 84V Biet R1 = 2 R2 va R3 = 10om so chi cua ampe ke A la 6 ampe . Tinh dong dien qua cac dien tro R1 r2 va gia tri R1 R2