The Wheatstone bridge shown in Fig. here, gets balanced when the carbon resistor used as $R_1$ has the colour code (Orange, Red, Brown). The resistors $R_2$ and $R_4$ are $80\, \Omega $ and $40\,\Omega $, respectively. Assuming that the colour code for the carbon resistors gives their accurate values, the colour code for the carbon resistor, used as $R_3$ would be
  • A
    Brown, Blue, Brown
  • B
    Brown, Blue, Black
  • C
    Red, Green, Brown
  • D
    Grey, Black, Brown
JEE MAIN 2019, Diffcult
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