JEE Main 2019 — Current Electricity Question with Solution
From: JEE Main 2019 (Online) 10th January Evening Slot
Question
The Wheatstone bridge shown in figure, here, gets balanced when the carbon resistor used as R1 has the colour code (Orange, Red, Brown). The resistors R2 and R4 are 80 and 40, respectively. Assuming that the colour code for the carbon resistors gives their accurate values, the colour code for the carbon resistor, used as R3, would be -
This question includes a diagram. The text above accompanies the figure.
Choose an option
Show full solutionCorrect option: A
Correct answer
ABrown, Blue, Brown
Step-by-step explanation
R1 = 32 10 = 320
for wheatstone bridge
Correct answer is Brown Blue Brown
for wheatstone bridge
Correct answer is Brown Blue Brown
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This is a previous-year question from JEE Main 2019, covering the Current Electricity chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.