⇦ | ⇨ |
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: - The oscillating frequency of a cyclotron is 10 MHz. If the radius of its Dees is o.5 m,
- The Priniple of LASER action involves
- If the cold junction of a thermo-couple is kept at 0⁰C and the hot junction is kept
- The electric field at a distance 3R / 2 from the centre of a charged conducting
- An artificial satellite is revolving round the earth in a circular orbit. Its velocity
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The oscillating frequency of a cyclotron is 10 MHz. If the radius of its Dees is o.5 m,
- The Priniple of LASER action involves
- If the cold junction of a thermo-couple is kept at 0⁰C and the hot junction is kept
- The electric field at a distance 3R / 2 from the centre of a charged conducting
- An artificial satellite is revolving round the earth in a circular orbit. Its velocity
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