Three resistors of 15 ohms each are connected to form the sides of a triangle .The equivalent resistance across any two points of the triangle will be.
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Answer:To calculate resistance between A and B,we can treat resistors between BC and AB to be in series,
There equivalent hence is,
R
′
=R
BC
+R
AC
⟹R
′
=60+100=160Ω
Now this equivalent resistor is in parallel with R
AB
.
Equivalent of R
′
and R
AB
can be calculated using formula,
R
EQ
=
R
AB
+R
′
R
′
R
AB
⟹R
EQ
=
160+40
160×40
=32Ω
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