The minimum size of a copper strip to be used as an earth electrode mu – McqOptions

MCQOPTIONS

1.	The minimum size of a copper strip to be used as an earth electrode must be:
A.	2.5 mm × 4 cm
B.	25 mm × 1.6 mm
C.	25 mm × 4 cm
D.	20 mm × 4 mm
Answer» C. 25 mm × 4 cm

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