A fuse wire with a radius of 1 mm blows at 1.5 A. If the fuse
wire of the same material should blow at 3.0 A, the radius of
the wire must be
(a) 4¹/³ mm (b) √2 mm
(c) 0.5 mm (d) 8.0 mm
Answers
Answered by
0
Answer:
please follow me and Mark brainliest answer
Explanation:
Given :
Radius of first wire = 1mm
Current blow in first wire = 3A
Radius of second wire = 2mm
To Find :
Current blow in second wire = ?
Concept :
Here both wire has same lenght and made up from same material therefore resistivity of both wires is also same...
Formula :
As per ohm's law V=IR
......................................................................................
We know that
......................................................................................
Calculation :
Similar questions