10R=l2l1
10R=23
R=15Ω
Length of 15Ω resistance wire is 1.5m
∴ length of 1Ω resistance wire =151.5=0.1
=1.0×10−1m
A resistance wire connected in the left gap of a metre bridge balances a 10 Ω resistance in the right gap at a point which divides the bridge wire in…
NEET UG 2020 — Physics Electromagnetism
2020mcqmedium
A resistance wire connected in the left gap of a metre bridge balances a 10Ω resistance in the right gap at a point which divides the bridge wire in the ratio 3:2. If the length of the resistance wire is 1.5m, then the length of 1Ω of the resistance wire is:
Official previous-year question
Held on 30 Apr 2020 · Verified 9 Jul 2026.
Options
- A
1.0×10−1m
- B
1.5×10−1m
- C
1.5×10−2m
- D
1.0×10−2m
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