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caokhactien2005
2 năm trước

cho hai điện trở r1 = 30 ôm và r2 = 60 ôm mắc song song với nhau và được mắc vào nguộn điện có u = 24v. tìm hiệu điện thế giữa hai đầu mỗi điện trở

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Phú Quang
2 năm trước

Đáp án:

 

Giải thích các bước giải:

Theo mình với mạch ss thì U=U1=U2

=) hiệu điện thế giữa hai đầu điện trở cùng bằng 24V

còn nếu là mạch nối tiếp mới cần tính toán

 

LionelMessi
2 năm trước

Ta có: U1=U2=U=24V

( Do 2 điện trở mắc song song)

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