A) 1 calorie/sec
B) 2 calories/sec
C) 3 calories/sec
D) 4 calories/sec
Correct Answer: B
Solution :
If the current in the\[5\Omega \], branch is\[x\], then that is the upper branch of total resistance \[10\Omega \] must be \[\frac{x}{2}\](in parallel,\[I\propto \frac{1}{R}\]). Now, \[{{x}^{2}}\times 5=10\]and\[{{\left( \frac{x}{2} \right)}^{2}}\times 4=?\]
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