| ⇦ | 
| ⇨ |
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: - The period of oscillation of a mass M suspended from a spring of negligible mass is T
- When an input signal 1 is applied to a NOT gate, then its output is
- An electric kettle has two heating elements. One brings it to boil in ten minutes
- A coil of resistance 20 ohm and inductance 5H is connected with a 100V battery
- 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
- The period of oscillation of a mass M suspended from a spring of negligible mass is T
- When an input signal 1 is applied to a NOT gate, then its output is
- An electric kettle has two heating elements. One brings it to boil in ten minutes
- A coil of resistance 20 ohm and inductance 5H is connected with a 100V battery
- 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