A Nichrome Wire Has a Radius of 1

question 74

Multiple Choice

A Nichrome wire has a radius of 1.3 mm and a resistivity of 1.5 × 10−⁶ Ω⋅m.If the wire carries a current of 1.8 A,what is the potential difference per unit length along this wire?

• A)0.19 V/m
• B)0.51 V/m
• C)0.66 V/m
• D)6.4 V/m
• E)5 V/m

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