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A fuse wire with radius of 0.2mm blows o...

A fuse wire with radius of `0.2mm` blows off with a current of 5 Amp. The fuse wire of same material,but of radius 0.3 mm will blow off with a current of
(1) `5xx(3)/(2)Amp`
(2). `(5sqrt(3))/(2)Amp`
(3). `5sqrt((27)/(8))Amp`
(4). `5 Amp`

A

`5 xx 3/2` amp

B

`(5sqrt(3))/2` amp

C

`5sqrt(27/8)` amp

D

5 amp

Text Solution

Verified by Experts

The correct Answer is:
C
`I^(2) alpha r^(3)`
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