a wire of resistance 5 ohm is bent in the form of a closed circle. what is the effective resistance b/w the 2 points at ends of any diameter of circle.
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a wire of resistance 5 ohm is bent in the form of a closed circle. what is the effective resistance b/w the 2 points at ends of any diameter of circle.
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Answer:
Resistance of each semi circle R
1
=R
2
=
2
5
=2.5 Ω
These resistance are connected in parallel.
So, equivalent resistance R
eq
=
R
1
+R
2
R
1
R
2
=
2.5+2.5
2.5×2.5
=1.25Ω.