AIPMT PRELIMS2007Physics-Electric Circuits
AIPMT PRELIMS 2007 Physics Wheatstone Bridge MCQ Question
Type: MCQ-numerical-Medium-Class 12
Three resistances P, Q, R each of 2Ω and an unknown resistance S form the four arms of a Wheatstone bridge circuit. When a resistance of 6Ω is connected in parallel to S the bridge gets balanced. What is the value of S?
A
3Ω
B
6Ω
C
1Ω
D
2Ω
Correct Answer
Option A
Detailed Explanation
For the Wheatstone bridge to be balanced, the ratio of resistances in one pair of opposite arms must equal the ratio in the other pair. Solving the equations gives S = 3Ω.
Found an issue with this question?
Related Questions
More from 2007
CH₃OC₂H₅ and (CH₃)₃C – OCH₃ are treated with concentrated acidic iodide. The fragments after reactions obtained are
Organic ChemistryChemistry
Which of the following is an eye disease?
Human Health and DiseaseZoology
Which one of the following is a fat-soluble vitamin and its related deficiency disease?
NutritionZoology