Resistor Colour Code MCQ - Practice Questions with Answers

The Wheatstone bridge shown in the figure here gets balanced when the carbon resistor used as $\mathrm{R}_1$ 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 $\mathrm{R}_3$, would be :

A 2 W carbon resistor is color-coded with green, black, red and brown respectively. The maximum current (in mA) which can be passed through this resistor is :

A $200 \Omega$ resistor has a certain color code. If one replaces the red color with green in the code, the new resistance (in $\Omega$ ) will be :