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Physics
Equivalent resistance between A and B is - (each connecting arm has resistance 'r' ) <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-nrxk5i5lzlfnxhe2.jpg />
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Q. Equivalent resistance between $A$ and $B$ is $-$
(each connecting arm has resistance $'r'$ )
NTA Abhyas
NTA Abhyas 2020
A
$\frac{7 r}{15}$
B
$\frac{8 r}{15}$
C
$\frac{3 r}{5}$
D
$\frac{16 r}{5}$
Solution:
$R_{A B}=\frac{8 R}{15}$