| ⇦ | 
| ⇨ |
Two metal wires of identical dimensions are connected in series. If σ₁ and σ₂ are the conductivities of the metal wires respectively, the effective conductivity of the combination is
Options
(a) σ₁+ σ₂/σ₁ σ₂
(b) σ₁ σ₂/σ₁+ σ₂
(c) 2σ₁ σ₂/σ₁+ σ₂
(d) σ₁+ σ₂/2σ₁ σ₂
Correct Answer:
2σ₁ σ₂/σ₁+ σ₂
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - An iron rod of volume 10⁻⁴ m³ and relative permeability 1000 is placed inside a long
- If the number of radius of ²⁷Al is 3.6 Fermi, the approximate nuclear radius
- The intensity at the maximum in a Young’s double slit experiment is I₀.
- A wire having resistance 12Ω is bent in the form of an equilateral triangle.
- Magnetic susceptibility of a material is given as
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An iron rod of volume 10⁻⁴ m³ and relative permeability 1000 is placed inside a long
- If the number of radius of ²⁷Al is 3.6 Fermi, the approximate nuclear radius
- The intensity at the maximum in a Young’s double slit experiment is I₀.
- A wire having resistance 12Ω is bent in the form of an equilateral triangle.
- Magnetic susceptibility of a material is given as
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply