Why the resistance does not remain same or increases when area of wire is increased.(as atoms should also increase in the conductor which obstructs the flow of electrons)
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as resistance depends on area and length of conductor,more will be area of conductor more will the flow through it less will be resistance ;hence resistance does not remains same. ( the atoms will increase but the wire will not heat up with same extent. hence vibration of atoms is less and resistance decreases.)
krazy1:
could n
ot understand
actually electrons are outside the Atoms and +ions are called kernels when the wire heats up the kernels vibrate more and increase resistance but in case of large area wire it will not heat up easily
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