A uniform metallic wire carries a current 2 A. When a 3.4 V battery is connected across it, the mass of the wi…

Question

A uniform metallic wire carries a current $2 \, \text{A}$ . When a $3.4 \, \text{V}$ battery is connected across it, the mass of the wire is $8.92 \times 10^{-3} \, \text{kg}$ , density is $8.92 \times 10^3 \, \text{kg/m}^3$ , and resistivity is $1.7 \times 10^{-8} \, \Omega \, \text{m}$ . The length of the wire is:

A
$6.8 \, \text{m}$
B
$10 \, \text{m}$
C
$5 \, \text{m}$
D
$100 \, \text{m}$

Accepted Answer

B. **$$10 \, 	ext{m}$$**

Answer

A. **$$6.8 \, 	ext{m}$$**

Answer

C. **$$5 \, 	ext{m}$$**

Answer

D. **$$100 \, 	ext{m}$$**

Answer & step-by-step solution

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