Earth wire or ground wire is made of

A. Increases B. Decreases C. Remains unaffected D. none of the above

A. increase B. decrease C. does not affect D. none of the above

A. only for the safety of the equipment B. only for the safety of the operating personnel C. both (A) and (B) D. none of the above

A. grounding resistance should be as low as possible B. grounding resistance should be as high as possible C. grounding resistance should be always zero D. none of the above