Connect a torch bulb to the battery with the different metal wires. Find out which wire gives the highest brightness to the bulb? Arrange the wires in the decreasing order of their electrical conductivity.

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Solution

Wires in decreasing order of electrical conductivity is : $I r o n > c o p p e r > a l u m i n i u m > n i c h r o m e .$

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Connect a torch bulb to the battery with the different metal wires. Find out which wire gives the highest brightness to the bulb? Arrange the wires in the decreasing order of their electrical conductivity.

Wires in decreasing order of electrical conductivity is : Iron>copper>aluminium>nichrome.

Wires in decreasing order of electrical conductivity is : $I r o n > c o p p e r > a l u m i n i u m > n i c h r o m e .$