List of top Questions asked in AP ECET- 2012

Four resistors $A, B, C$ and $D$ form a Wheatstones bridge. The bridge is balanced, when $C=100 \Omega$. If $A$ and $B$ are interchanged, the bridge balances for $C=121 \Omega$. The value of $D$ is

Three resistances of equal values are arranged in four different configurations as shown below. Power dissipation in the increasing order is