Q17.In a meter bridge, as shown in the figure, it is given that resistance Y = 12.5Ω and that the balance is obtained at a distance 39.5 cm from end A (by jockey J). After interchanging the resistances X and Y , a new balance point is found at a distance l2 from end A . What are the values of X and l2 ? (1) 19.15Ω and 39.5 cm (2) 8.16Ω and 60.5 cm (3) 19.15Ω and 60.5 cm (4) 8.16Ω and 39.5 cm
What This Question Tests
This question applies the Wheatstone bridge principle to a meter bridge setup to calculate an unknown resistance and a new balance point after interchanging resistances.
Concepts Tested
Formulas Used
X/Y = l/(100-l)
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📋 Question Details
- Chapter
- Current Electricity
- Topic
- Meter Bridge
- Year
- 2018
- Shift
- 15 Apr Shift 1 Online
- Q Number
- Q17
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 3: Current Electricity
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