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Q. |
A fuse wire of circular cross section has a radius of 0.8mm. The wire blows off at a current of 9(A) What will be the radius of the wire that will blow off at a current of 1A? |
A. | 0.2 mm |
B. | 0.18 mm |
C. | 0.28 mm |
D. | 0.3 mm |
Answer» B. 0.18 mm |
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