Class 12 Exam  >  Class 12 Questions  >  A student measures the terminal potentialdiff... Start Learning for Free
A student measures the terminal potentialdifference (V) of a cell (of emf E and internalresistance r) as a function of the current (I)flowing through it. The slope and intercept, ofthe graph between V and I, then, respectively,equal: [2009]
  • a)
    – r and E
  • b)
    r and – E
  • c)
    – E and r
  • d)
    E and – r
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A student measures the terminal potentialdifference (V) of a cell (of ...
The terminal potential difference of a cell is
given by V + Ir = E
V= VA – VB
or V = E – Ir
 Also for, i = 0 then V = E
∴ slope = – r, intercept = E
View all questions of this test
Most Upvoted Answer
A student measures the terminal potentialdifference (V) of a cell (of ...
The slope of the graph between V and I represents the internal resistance of the cell, r. This is because according to Ohm's Law, V = E - Ir, where E is the emf of the cell. Rearranging this equation, we get Ir = E - V, which shows that the current I is directly proportional to the difference between the emf and the terminal potential difference. Therefore, the slope of the graph is equal to the internal resistance, r.

The intercept of the graph represents the emf of the cell, E. This is because when the current I is zero, the equation V = E - Ir simplifies to V = E, meaning that the terminal potential difference is equal to the emf. Therefore, the intercept of the graph is equal to the emf, E.
Explore Courses for Class 12 exam

Top Courses for Class 12

Question Description
A student measures the terminal potentialdifference (V) of a cell (of emf E and internalresistance r) as a function of the current (I)flowing through it. The slope and intercept, ofthe graph between V and I, then, respectively,equal: [2009]a)– r and Eb)r and – Ec)– E and rd)E and – rCorrect answer is option 'A'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A student measures the terminal potentialdifference (V) of a cell (of emf E and internalresistance r) as a function of the current (I)flowing through it. The slope and intercept, ofthe graph between V and I, then, respectively,equal: [2009]a)– r and Eb)r and – Ec)– E and rd)E and – rCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A student measures the terminal potentialdifference (V) of a cell (of emf E and internalresistance r) as a function of the current (I)flowing through it. The slope and intercept, ofthe graph between V and I, then, respectively,equal: [2009]a)– r and Eb)r and – Ec)– E and rd)E and – rCorrect answer is option 'A'. Can you explain this answer?.
Solutions for A student measures the terminal potentialdifference (V) of a cell (of emf E and internalresistance r) as a function of the current (I)flowing through it. The slope and intercept, ofthe graph between V and I, then, respectively,equal: [2009]a)– r and Eb)r and – Ec)– E and rd)E and – rCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of A student measures the terminal potentialdifference (V) of a cell (of emf E and internalresistance r) as a function of the current (I)flowing through it. The slope and intercept, ofthe graph between V and I, then, respectively,equal: [2009]a)– r and Eb)r and – Ec)– E and rd)E and – rCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A student measures the terminal potentialdifference (V) of a cell (of emf E and internalresistance r) as a function of the current (I)flowing through it. The slope and intercept, ofthe graph between V and I, then, respectively,equal: [2009]a)– r and Eb)r and – Ec)– E and rd)E and – rCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for A student measures the terminal potentialdifference (V) of a cell (of emf E and internalresistance r) as a function of the current (I)flowing through it. The slope and intercept, ofthe graph between V and I, then, respectively,equal: [2009]a)– r and Eb)r and – Ec)– E and rd)E and – rCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of A student measures the terminal potentialdifference (V) of a cell (of emf E and internalresistance r) as a function of the current (I)flowing through it. The slope and intercept, ofthe graph between V and I, then, respectively,equal: [2009]a)– r and Eb)r and – Ec)– E and rd)E and – rCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A student measures the terminal potentialdifference (V) of a cell (of emf E and internalresistance r) as a function of the current (I)flowing through it. The slope and intercept, ofthe graph between V and I, then, respectively,equal: [2009]a)– r and Eb)r and – Ec)– E and rd)E and – rCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 12 tests.
Explore Courses for Class 12 exam

Top Courses for Class 12

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev