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Why are copper wires used as connecting ...

Why are copper wires used as connecting wires ?

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Copper wire is used as connecting wires because copper has very low resistivity.
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a. If a person touches a live wire, will he get stuck to it? b. Why do we use copper wires as connecting wires? c. wire is carrying a current. Is it charged? If not, why?

A bulb with rating 250V, 100W is connected to a power supply of 220 V situatd 10 m away using a copper wire of area of cross section 5 mm^2 . How much power will be consumed by the connecting wire? Resistivity of copper = 1.7 xx 10^(-8) Omegam .

Knowledge Check

  • Assertion (A) : Copper is used to make electric wires. Reason (R) : Copper has very low electrical resistance.

    A
    Both A and R are true and R is the correct explanation of A.
    B
    Both A and R are true but R is NOT the correct explanation of A
    C
    A is true but R is false
    D
    A is false but R is true.

  • The electrical resistivity of a thin copper wire and a thick copper wire are respectively P_(1) Omega m P_(2) Omega m. then

    A
    `P_(1) gt P_(2)`
    B
    `P_(2) gt P_(1)`
    C
    `P_(1) = P_(2)`
    D
    `(P_(1))/(P_(2))`

    • Similar Questions

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    Why are connecting wires made of copper?

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