| ⇦ | 
| ⇨ |
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: - Which of the following are mechanical waves?
- A 1Ω resistance in series with an ammeter is balanced by 75 cm of potentiometer wire
- Three blocks A,B and C of masses 4 kg, 2 kg and 1 kg respectively are in contact
- How much work is required to carry a 6 μC charge from the negative terminal
- If a steel wire of length l and magnetic moment M is bent into a semicircular arc,
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following are mechanical waves?
- A 1Ω resistance in series with an ammeter is balanced by 75 cm of potentiometer wire
- Three blocks A,B and C of masses 4 kg, 2 kg and 1 kg respectively are in contact
- How much work is required to carry a 6 μC charge from the negative terminal
- If a steel wire of length l and magnetic moment M is bent into a semicircular arc,
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