Moisture content in the soil _____ the earth soil resistance.

increases

decreases

does not effects

none of the above

depth of the electrode

moisture

NaCl

all the above

To protect the equipment from excess current

To maintain the line current constant

To maintain the supply voltage constant

To increase the life of the equipments

earth terminal

phase terminal

neutral terminal

live terminal

for over current

for high voltage

for leakage current

for low voltage