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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

`0.2Omega`

B

`5Omega`

C

`0.4Omega`

D

`0.04Omega`

Text Solution

Verified by Experts

The correct Answer is:
D
Power `P=i^(2)R rArr R=(P)/(i^(2))`
Given, `P=1W,i=5A`
`:.R=(1)/((5)^(2))=0.04Omega`
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