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An aluminum wire of diamter 0.24m is con...

An aluminum wire of diamter `0.24m` is connected in series to a copper wire of diamter `0.16 cm`. The wires carry an electric current of 1 A. Determine the current density in aluminium wire.

Text Solution

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Diamteter `d=0.24cm =0.24 xx10^(-2)m`
radius `r=(d)/(2)m`
Current `I=10A`
Current density `J=(I)/(A)=(I)/(pi^(2))`
`(10)/(3.14xx(0.12xx10^(-2))^(2))`
`=2.2xx10^(60) Am^(-2)`
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