4) To reduce corona effect, usually :

the distance between the conductors is reduced

the conductor diameter is reduced

bundled conductors are used

stranded conductors are used

Answer is:

bundled conductors are used

the current density is reduced

the eddy current in the conductor is eliminated

for a given cross section, the radius of the conductor is increased

of better ventilation in the conductor

Answer is:

diameter of the conductor

material of the conductor

height of the conductor

none of above

Answer is:

there will be no corona glow

corona glow will be uniform along the length of the conductor

there will be minimum power loss

hissing sound will be more intense

Answer is:

corona is voltage effect

corona takes place on short transmission lines

corona is accompanied with power loss

corona attenuates lightning surges

Answer is: