When the resistance of copper wire is 0.1 Ω Ω and the radius is 1 mm, then the length of the wire is (specific resistance of copper is 3.14 × 10 –8 ohm x m)
Text Solution
Verified by ExpertsThe correct answer is:
B
R = 
⇒ 0.1 = 
⇒ λ = 10 m
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Specific resistance of a wire depends on its
There are two wires of the same length and of the same material and radii r and 2r. The ratio of th…
If the length and cross-section of a wire is doubled, then the resistance will
V-i graph for an ohmic resistance i
When a resistance wire is passed through a die the cross–section area decreases by 1%, the change i…
Three copper wires of length and cross–sectional area (L, A), (2L, A/2) and (L/2, 2A). Resistance i…