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answer of question 6 is option 3
reason behind that : R = p l/a
where, p : resistivity
l : length
a : area
in option 3 it gives 100cm in length and 1/2 mm radius
that's area become smallest
that makes more resistance
reason behind that : R = p l/a
where, p : resistivity
l : length
a : area
in option 3 it gives 100cm in length and 1/2 mm radius
that's area become smallest
that makes more resistance
Anonymous:
what will be the area
area = π × 1/2×1/2
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