NEET Physics Resistance & Resistivity Assertion Reason Question
Assertion (A): The equivalent emf of a series combination of two cells is the sum of their individual emfs only if the negative electrode of one connects to the positive electrode of the other.
Reason (R): When two cells are connected with their negative electrodes together, the equivalent emf is the difference of their individual emfs if the emf of the first cell is greater.
Both A and R are true, and R is the correct explanation of A.
Both A and R are true, but R is not the correct explanation of A.
A is true, but R is false.
A is false, but R is true.
Correct Answer
Detailed Explanation
The NCERT context states that if the negative of one cell connects to the positive of another, their emfs add up. If negatives are connected, the equivalent emf is the difference.
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