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A 5-A wire can withstand a maximum power...

A `5-A` wire can withstand a maximum power of `1W` in circuit. The resistance of the fuse wire is

A

0 ohm

B

0.04 ohm

C

0.2 ohm

D

0.4 ohm

Text Solution

Verified by Experts

The correct Answer is:
B
`P= I^(2)R implies R =(P)/(I^(2))=(1)/(25)=0.04 Omega`
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