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Three resistance P, Q, R each of 2Ω and an unknown resistance S from for four arms of a Wheatstone’s bridge circuit. When a resistance of 6Ω is connected in parallel to S the bridge get balanced. What is the value of S (in Ω)?
Correct answer is '3'. Can you explain this answer?
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Verified Answer
Three resistanceP,Q,R each of 2Ω and an unknown resistanceS from...
The bridge formed with given resistance is a balanced wheat stone’s bridge.
The situation can be depicted as shown in figure.
As resistances S and 6Ω are in parallel their effective resistance is 
or 4S = 12
or S = 3Ω
The correct answer is: 3
Most Upvoted Answer
Three resistanceP,Q,R each of 2Ω and an unknown resistanceS from...
The bridge formed with given resistance is a balanced wheat stone’s bridge.
The situation can be depicted as shown in figure.
As resistances S and 6Ω are in parallel their effective resistance is 
or 4S = 12
or S = 3Ω
The correct answer is: 3
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Community Answer
Three resistanceP,Q,R each of 2Ω and an unknown resistanceS from...
Analysis:
To balance the Wheatstone's bridge circuit, the condition is that the ratio of resistances in the opposite arms must be the same. Let's denote the resistances as follows:
- Resistance P = 2Ω
- Resistance Q = 2Ω
- Resistance R = 2Ω
- Resistance S = unknown
Calculations:
1. Initially, the bridge is unbalanced. Let's denote the resistance S as xΩ.
2. The ratio of resistances in the opposite arms is:
- P/Q = S/R
- 2/2 = x/2
- 1 = x/2
- x = 2Ω
Conclusion:
Therefore, the value of resistance S to balance the bridge when a 6Ω resistor is connected in parallel is 2Ω.
To balance the Wheatstone's bridge circuit, the condition is that the ratio of resistances in the opposite arms must be the same. Let's denote the resistances as follows:
- Resistance P = 2Ω
- Resistance Q = 2Ω
- Resistance R = 2Ω
- Resistance S = unknown
Calculations:
1. Initially, the bridge is unbalanced. Let's denote the resistance S as xΩ.
2. The ratio of resistances in the opposite arms is:
- P/Q = S/R
- 2/2 = x/2
- 1 = x/2
- x = 2Ω
Conclusion:
Therefore, the value of resistance S to balance the bridge when a 6Ω resistor is connected in parallel is 2Ω.
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Three resistanceP,Q,R each of 2Ω and an unknown resistanceS from for four arms of a Wheatstone’s bridge circuit. When a resistance of 6Ω is connected in parallel toS the bridge get balanced. What is the value ofS (in Ω)?Correct answer is '3'. Can you explain this answer?
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Three resistanceP,Q,R each of 2Ω and an unknown resistanceS from for four arms of a Wheatstone’s bridge circuit. When a resistance of 6Ω is connected in parallel toS the bridge get balanced. What is the value ofS (in Ω)?Correct answer is '3'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about Three resistanceP,Q,R each of 2Ω and an unknown resistanceS from for four arms of a Wheatstone’s bridge circuit. When a resistance of 6Ω is connected in parallel toS the bridge get balanced. What is the value ofS (in Ω)?Correct answer is '3'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Three resistanceP,Q,R each of 2Ω and an unknown resistanceS from for four arms of a Wheatstone’s bridge circuit. When a resistance of 6Ω is connected in parallel toS the bridge get balanced. What is the value ofS (in Ω)?Correct answer is '3'. Can you explain this answer?.
Three resistanceP,Q,R each of 2Ω and an unknown resistanceS from for four arms of a Wheatstone’s bridge circuit. When a resistance of 6Ω is connected in parallel toS the bridge get balanced. What is the value ofS (in Ω)?Correct answer is '3'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about Three resistanceP,Q,R each of 2Ω and an unknown resistanceS from for four arms of a Wheatstone’s bridge circuit. When a resistance of 6Ω is connected in parallel toS the bridge get balanced. What is the value ofS (in Ω)?Correct answer is '3'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Three resistanceP,Q,R each of 2Ω and an unknown resistanceS from for four arms of a Wheatstone’s bridge circuit. When a resistance of 6Ω is connected in parallel toS the bridge get balanced. What is the value ofS (in Ω)?Correct answer is '3'. Can you explain this answer?.
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