Question 143 of 380

Four resistance $40\Omega ,60\Omega ,90\Omega$ $110\Omega$ and make the arms of a quadrilateral $ABCD$. Across $AC$ is a battery of emf $40V$ and internal resistance negligible. The potential difference across $BD$ in $V$ is __________

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Answer: 2

From $KVL$
${V}_{B}-60\left(\dfrac{40}{100}\right)+110\left(\dfrac{40}{200}\right)={V}_{D}$
${V}_{B}-{V}_{D}=2$