Question

Four resistances of $100\Omega$ are connected in the form of square. Then the effective resistance along the diagonal points is

• A. $200\Omega$
• B. $400\Omega$
• C. $100\Omega$
• D. $150\Omega$

Answer 1

Answer: (C)

$100\Omega$

Effective resistance between A and B $R_{AB}=(100+100)\parallel (100+100)=200\parallel 200$

$⟹$ $R_{AB}=\frac{200\times 200}{200+200}=100\Omega$