A wire is 1 m long and 1×10−6 m2 in cross-sectional area. When connect

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A wire is 1 m long and 1×10−6 m2 in cross-sectional area. When connected to a potential difference of 2 V, a current of 4 A exists in the wire. The resistivity of this wire is: 2×10−6 Ω⋅m 8×10−6 Ω⋅m 1×10−7 Ω⋅m 4×10−7 Ω⋅m 5×10−7 Ω⋅m

A wire is 1 m long and 1×10−6 m2 in cross-sectional area. When connected to a potential difference of 2 V, a current of 4 A exists in the wire. The resistivity of this wire is: 2×10−6 Ω⋅m 8×10−6 Ω⋅m 1×10−7 Ω⋅m 4×10−7 Ω⋅m 5×10−7 Ω⋅m

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A wire is

1 m

long and

1 \times 10^{- 6} m^{2}

in cross-sectional area. When connected to a potential difference of

2 V

, a current of

4 A

exists in the wire. The resistivity of this wire is:

2 \times 10^{- 6} Ω \cdot m

8 \times 10^{- 6} Ω \cdot m

1 \times 10^{- 7} Ω \cdot m

4 \times 10^{- 7} Ω \cdot m

5 \times 10^{- 7} Ω \cdot m

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