A $5\;ampere$ fuse wire can withstand a maximum power of $1\; watt$ in the circuit. The resistance of the fuse wire is
A$0.2$
B$5$
C$0.04$
D$0.4$
AIPMT 2005, Medium
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C$0.04$
c $P=i^{2} R$
$1=25 \times R$
$R=\frac{1}{25}=0.04 \Omega$
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