| ⇦ | 
| ⇨ |
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: - A device which converts electrical energy into mechanical energy is
- To draw the maximum current from a combination of cells, how should be the cells
- A light of wavelength 5000Å falls on a sensitive plate with photoelectric work
- A common emitter amplifier gives an output of 3 V for an input of 0.01 V.
- A certain number of spherical dropes of a liquid of radius r coalesce to form a single
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A device which converts electrical energy into mechanical energy is
- To draw the maximum current from a combination of cells, how should be the cells
- A light of wavelength 5000Å falls on a sensitive plate with photoelectric work
- A common emitter amplifier gives an output of 3 V for an input of 0.01 V.
- A certain number of spherical dropes of a liquid of radius r coalesce to form a single
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