question_answer

The Wheatstone bridge shown in figure, here, gets balanced when the carbon resistor used as \[{{R}_{1}}\] has the colour code (Orange, Red, Brown).  he resistors R2 and R4 are 800. and 400, respectively. Assuming that the colour code for the carbon resistors gives their accurate values, the colour code for the carbon resistor, used as Rs, would be-

[JEE Main 10-Jan-2019 Evening]

A) Brown, Blue, Brown

B) Grey, Black, Brown

C) Red, Green, Brown

D) Brown, Blue, Black

Correct Answer: B

Solution :

[b]

Color code for  orange, red, brown

Balanced condition

Corresponding color code for  = Brown, Blue and Brown