A power circuit uses a cable having three different wires.
(a) List the names of all the three wires.
(b) To which wire, should the metallic case of the geyser be connected?
(c) To which wire should the fuse be connected?
 
 

Solution:
A power circuit uses a cable having three different wires.
a. These three wires  ​​​are;
Live wire, Neutral wire, Earth Wire.
b. The metal case of the geyser must be connected to the earth wire; it is a part of key safety function.
c. Fuse is a safety device, so it should be connected to the Live wire.

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