Power Systems
A fuse wire of circular cross-section has a radius of 0.8 mm. The wire blows off at an current of 8 Amp. Calculate the radius of wire that will blow off at an current of 1 amp?

  0.2 mm.
 4 mm.
 2 mm.
 0.4 mm.

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Power Systems
The factor affecting run off are

  all of above.
 the topography and nature of soil in the catchment area.
 rain fall pattern, shape and size of catchment area.
 amount of vegetation and weather condition in the catchment area.

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