| ⇦ | 
| ⇨ |
Two cells, having the same e.m.f. are connected in series through an external resistance R. Cells have internal resistances r₁ and r₂ (r₁ > r₂) respectively. When the circuit is closed, the potential difference across the first cell is zero. The value of R is
Options
(a) r₁ + r₂
(b) r₁ – r₂
(c) r₁ + r₂/2
(d) r₁ – r₂/2
Correct Answer:
r₁ – r₂
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - A ball moving with velocity 2 m/s collides head on with another stationary ball
- The focal lengths of a converging lens are fᵥ and fᵣ for violet and red lights
- In a circuit, the current lags behind the voltage by a phase difference of π/2.
- Oil spreads over the surface of water where as water does not spread
- What is the dimension of impedance?
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A ball moving with velocity 2 m/s collides head on with another stationary ball
- The focal lengths of a converging lens are fᵥ and fᵣ for violet and red lights
- In a circuit, the current lags behind the voltage by a phase difference of π/2.
- Oil spreads over the surface of water where as water does not spread
- What is the dimension of impedance?
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