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Current Electricity question

2016 · 9 Apr · Shift 1 · Q70
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Current Electricity question

2016 · 9 Apr · Shift 1 · Q70

JEE MainPhysicsCurrent ElectricityMCQ+4 / −1
JEE Main 2016 (Online) 9th April Morning Slot Physics - Current Electricity Question 286 English In the circuit shown, the resistance r is a variable resistance. If for r = fR, the heat generation in r is maximum then the value of f is :
  1. A
    14{1 \over 4}41​
  2. B
    12{1 \over 2}21​
  3. C
    34{3 \over 4}43​
  4. D
    1
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