An Instagram video has gone viral after demonstrating a quick hack electricians use to test a fuse using just a smartphone. The clip, posted by @creationsparkdiy, has now reached 5.2 million views.

Add Yahoo as a preferred source to see more of our stories on Google. Place a fuse on a smart phone screen and try to dial a number. If the number lights up and beeps, it means the fuse will conduct ...

When a fuse is fitted in a power rail, it gives the peace of mind that the circuit is protected. But in the case of some cheap unbranded fuses of the type that come in kits from the usual online ...