A) \[3.5\,m\]
B) \[5.0\,\,m\]
C) \[5.7\text{ }m\]
D) \[6.5\text{ }m\]
Correct Answer: A
Solution :
\[x=\frac{E}{L}=\frac{1.5}{7.5}=\frac{1}{5}\] \[V=IR=x\ell '\] \[\ell '=\frac{IR}{x}=\frac{0.2\times 3.5}{\frac{1}{5}}=3.5\,m\]You need to login to perform this action.
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