| ⇦ | 
| ⇨ |
A student measures the terminal potential difference (V) of a cell (of emf E and internal resistance r) as a function of the current (I) flowing through it. The slope and intercept, of the graph between V and I, then, respectively, equal:
Options
(a) – r and E
(b) r and – E
(c) – E and r
(d) E and -r
Correct Answer:
– r and E
Explanation:
The terminal potential difference of ao ocell is given by V + Ir = E V = Vₘ – Vₙ
or V= E – Ir
dV/ dI = – r, Also for i= 0 then V = E
slope = – r, intercept = E
Related Questions: - A galvanometer having internal resistance 10Ω requires 0.01 A for a full scale
- The wavelength λₑ of an electron and λₚ of a photon are of same energy E are related by
- What is the value of Ā+A in the Boolean algebra?
- 300j work is done in sliding a 2kg block up an inclined plane of height 10m
- What is the difference between soft and hard X-ray?
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A galvanometer having internal resistance 10Ω requires 0.01 A for a full scale
- The wavelength λₑ of an electron and λₚ of a photon are of same energy E are related by
- What is the value of Ā+A in the Boolean algebra?
- 300j work is done in sliding a 2kg block up an inclined plane of height 10m
- What is the difference between soft and hard X-ray?
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