NEET2018Physics-Electric Circuits
NEET 2018 Physics Internal Resistance MCQ Question
Type: MCQ-conceptual-Medium-Class 12
A battery consists of a variable number 'n' of identical cells (having internal resistance 'r' each) which are connected in series. The terminals of the battery are short-circuited and the current I is measured. Which of the graphs shows the correct relationship between I and n?
Correct Answer
Option A
Detailed Explanation
The current I is inversely proportional to the total internal resistance, which increases linearly with n.
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