The resistance of a heater coil is $110\, ohm$. A resistance $R$ is connected in parallel with it and the combination is joined in series with a resistance of $11\, ohm$ to a $220\, volt$ main line. The heater operates with a power of $110\, watt$. The value of $R$ in $ohm$ is
  • A$12.22$
  • B$24.42$
  • C
    Negative
  • D
    That the given values are not correct
Diffcult
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