| ⇦ | 
| ⇨ |
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 intensity of magnetisation of a bar magnet is 5×10⁴ Am⁻¹. The magnetic length
- Two pendulums A and B are oscillating simultaneously with time period
- A piece of iron is heated in a flame. It first comes dull red then becomes reddish
- A planar coil having 12 turns carries 15 A current. The coil is oriented with respect
- A satellite S is moving in an elliptical orbit around the earth. The mass
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The intensity of magnetisation of a bar magnet is 5×10⁴ Am⁻¹. The magnetic length
- Two pendulums A and B are oscillating simultaneously with time period
- A piece of iron is heated in a flame. It first comes dull red then becomes reddish
- A planar coil having 12 turns carries 15 A current. The coil is oriented with respect
- A satellite S is moving in an elliptical orbit around the earth. The mass
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