Three 6 ohm resistors are connected to form a triangle. What is the resistance between any two corners?
A. $$\frac{3}{2}\Omega $$
B. 6 $$\Omega $$
C. 4 $$\Omega $$
D. $$\frac{8}{3}\Omega $$
Answer: Option C
This Question Belongs to Electrical Engineering >> Current Electricity
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Now each leg of star network is given by R= 6x6/6+6+6 = 36/18=2 ohms/ so the resistance between corners is 4 ohms.
1/R = 1/R1 + 1/(R2 + R3)
1/R = 1/R1 + (1/R1 + 1 / R2)