题目
题型:不详难度:来源:
R1R2 |
R1+R2 |
R1R2R3 |
R1+R2+R3 |
答案
∴
1 |
R 总 |
1 |
R1 |
1 |
R2 |
1 |
R3 |
R1R2+R2R3+R1R3 |
R1R2R3 |
∴R总=
R1R2R3 |
R1R2+R2R3+R3R1 |
∴总电阻R总=
R1R2R3 |
R1+R2+R3 |
核心考点
试题【两个电阻R1、R2并联的总电阻为R总=R1R2R1+R2,有同学据此认为三个电阻R1、R2、R3并联后的总电阻R总=R1R2R3R1+R2+R3,但是这个想法是】;主要考察你对电阻等知识点的理解。[详细]
举一反三