| ⇦ | 
| ⇨ |
Four cells, each of emf E and internal resistance r, are connected in series across an external resistance R. By mistake one of the cells is connected in reverse. Then, the current in the external circuit is
Options
(a) 2E/4r+R
(b) 3E/4r+R
(c) 3E/3r+R
(d) 2E/3r+R
Correct Answer:
2E/4r+R
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - Three resistances 2Ω, 3Ω and 4Ω are connected in parallel. The ratio of currents passing
- What is the energy of He⁺ electron in first orbit?
- In a circuit, L,C and R are connected in series with an alternating voltage source
- A bar magnet of pole strength 10 A-m is cut into two equal parts breadthwise.
- A ball is dropped into a well in which the water level is at a depth h below the top
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Three resistances 2Ω, 3Ω and 4Ω are connected in parallel. The ratio of currents passing
- What is the energy of He⁺ electron in first orbit?
- In a circuit, L,C and R are connected in series with an alternating voltage source
- A bar magnet of pole strength 10 A-m is cut into two equal parts breadthwise.
- A ball is dropped into a well in which the water level is at a depth h below the top
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