A R1+R2 reading at the extreme end of a 25m long 20A radial socket outlet circuit is taken. Given that the resistance per metre of 2.5mm2 cable is 7.41m Ω /m at 20 degrees Celsius what would be the approximate reading of R1 + R2?
Which Human sense is most suitable during the inspection for checking the correct protective device is installed?
If 3 conductors equal in length and with a resistance of 0.25 Ω are connected in series what is the total resistance?
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