JEE Exam  >  JEE Questions  >  A resistance of 2Ω is connected across ... Start Learning for Free
A resistance of 2Ω is connected across one gap of a metrebridge (the length of the wire is 100 cm) and an unknown resistance, greater than 2Ω, is connected across the other gap. When these resistances are interchanged, the balance point shifts by 20 cm. Neglecting any corrections, the unknown resistance is
  • a)
  • b)
  • c)
  • d)
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A resistance of 2Ω is connected across one gap of a metrebridge ...
Given X is greater than 2Ω when the bridge is balanced
When the resistances are interchanged the jockey shifts 20 cm. Therefore
View all questions of this test
Most Upvoted Answer
A resistance of 2Ω is connected across one gap of a metrebridge ...
Given Data:
- Resistance of known resistor, R1 = 2Ω
- Length of the wire, L = 100 cm = 1 m
- Balancing length shift, ΔL = 20 cm = 0.2 m

Calculations:
- Let the unknown resistance be R2.
- Using the principle of meter bridge, we have:
R1/R2 = L/(L - ΔL)
2/R2 = 1/0.8
R2 = 2/0.8
R2 = 2.5Ω

Conclusion:
The unknown resistance, R2, calculated above is 2.5Ω, which is greater than 2Ω. Hence, option 'A' (3Ω) is the closest correct answer.
Explore Courses for JEE exam
A resistance of 2Ω is connected across one gap of a metrebridge (the length of the wire is 100 cm) and an unknown resistance, greater than 2Ω, is connected across the other gap. When these resistances are interchanged, the balance point shifts by 20 cm. Neglecting any corrections, the unknown resistance isa)3Ωb)4Ωc)5Ωd)6ΩCorrect answer is option 'A'. Can you explain this answer?
Question Description
A resistance of 2Ω is connected across one gap of a metrebridge (the length of the wire is 100 cm) and an unknown resistance, greater than 2Ω, is connected across the other gap. When these resistances are interchanged, the balance point shifts by 20 cm. Neglecting any corrections, the unknown resistance isa)3Ωb)4Ωc)5Ωd)6ΩCorrect answer is option 'A'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A resistance of 2Ω is connected across one gap of a metrebridge (the length of the wire is 100 cm) and an unknown resistance, greater than 2Ω, is connected across the other gap. When these resistances are interchanged, the balance point shifts by 20 cm. Neglecting any corrections, the unknown resistance isa)3Ωb)4Ωc)5Ωd)6ΩCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A resistance of 2Ω is connected across one gap of a metrebridge (the length of the wire is 100 cm) and an unknown resistance, greater than 2Ω, is connected across the other gap. When these resistances are interchanged, the balance point shifts by 20 cm. Neglecting any corrections, the unknown resistance isa)3Ωb)4Ωc)5Ωd)6ΩCorrect answer is option 'A'. Can you explain this answer?.
Solutions for A resistance of 2Ω is connected across one gap of a metrebridge (the length of the wire is 100 cm) and an unknown resistance, greater than 2Ω, is connected across the other gap. When these resistances are interchanged, the balance point shifts by 20 cm. Neglecting any corrections, the unknown resistance isa)3Ωb)4Ωc)5Ωd)6ΩCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of A resistance of 2Ω is connected across one gap of a metrebridge (the length of the wire is 100 cm) and an unknown resistance, greater than 2Ω, is connected across the other gap. When these resistances are interchanged, the balance point shifts by 20 cm. Neglecting any corrections, the unknown resistance isa)3Ωb)4Ωc)5Ωd)6ΩCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A resistance of 2Ω is connected across one gap of a metrebridge (the length of the wire is 100 cm) and an unknown resistance, greater than 2Ω, is connected across the other gap. When these resistances are interchanged, the balance point shifts by 20 cm. Neglecting any corrections, the unknown resistance isa)3Ωb)4Ωc)5Ωd)6ΩCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for A resistance of 2Ω is connected across one gap of a metrebridge (the length of the wire is 100 cm) and an unknown resistance, greater than 2Ω, is connected across the other gap. When these resistances are interchanged, the balance point shifts by 20 cm. Neglecting any corrections, the unknown resistance isa)3Ωb)4Ωc)5Ωd)6ΩCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of A resistance of 2Ω is connected across one gap of a metrebridge (the length of the wire is 100 cm) and an unknown resistance, greater than 2Ω, is connected across the other gap. When these resistances are interchanged, the balance point shifts by 20 cm. Neglecting any corrections, the unknown resistance isa)3Ωb)4Ωc)5Ωd)6ΩCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A resistance of 2Ω is connected across one gap of a metrebridge (the length of the wire is 100 cm) and an unknown resistance, greater than 2Ω, is connected across the other gap. When these resistances are interchanged, the balance point shifts by 20 cm. Neglecting any corrections, the unknown resistance isa)3Ωb)4Ωc)5Ωd)6ΩCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice JEE tests.
Explore Courses for JEE exam

Top Courses for JEE

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev