What happens to the value of resistance of a wire if the area of crosssection of wire is doubled?
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Answer:
listen bro
resistance is directly proportional to area of cross section
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If the area of cross section of the wire is doubled then the value of the resistance becomes half
Explanation:
- this is because with increase in area of cross section the electrons can drift away from each other more easily. There will be less collision and hence the conduction of electricity will be more.
- As conduction of electricity is inversely proportional to the resistance of the wire and cross sectional area is also inversely proportional to the resistance of the wire which will become half
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