A wire of length has a resistance . It is gradually stretched till its length becomes .
(a) Plot a graph showing variation of its resistance R with its length l during stretching.
(b) What will be its resistance when its length becomes ?
a)
b)
When the wire is stretched the volume remains the same
CBSE Class 12 board exams 2025 to have 50% competency-based questions; no change in 10th
CBSE Class 12 board exams 2024 over; expected result date, trends of last 10 years
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