MCQ
The maximum current that flows through a fuse wire before it blows out varies with its radius as
  • ${r^{3/2}}$
  • B
    $r$
  • C
    ${r^{2/3}}$
  • D
    ${r^{1/2}}$

Answer

Correct option: A.
${r^{3/2}}$
a
(a) It is called safe current and is proportional to ${r^{3/2}}$.

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