Question

In domestic circuits, wires with red insulations are used as live wires, whereas *

a) the wires with black insulations are used as neutral (or negative) wires
b) the wires with green insulations or steel wires are used as earth wires
c) the wires with black insulations are used for positive terminals
d) Only (a) and (b)

Answer 1

Answer:

b the wires with green insulations or steel wires are used as earth wires

c) the wires with black insulations