In any system, a ____ coupling exist between the system conductors and the adjacent grounding surfaces

A. Capacitance

D. Inductance

C. Resistance

D. None of the above

Answer: A. Capacitance

Explanation: 

In any system a coupling Capacitance exist between the system conductors and the adjacent grounding surfaces

Electrical earthing:

• The process of transferring the immediate discharge of the electrical energy directly to the earth with the help of the low resistance wire is known as Electrical earthing.
• The electrical earthing is done by connecting the non-current carrying part of the equipment or neutral supply system to the ground.

There are two types of electrical earthing named 

• Neutral earthing
• Equipment earthing

Neutral earthing:

• The neutral earthing is also called the system earthing.
• In neutral earthing, the neutral of the system is directly connected to the earth with the help of the GI wire.
• This type of earthing is mostly provided to the system which has star winding.

Equipment earthing:

• This type of earthing is provided to the electrical equipment for the safety of operating personnel.
• The non-current carrying part of the equipment like their metallic frame is connected to the earth with the help of the conducting wire.
• If any fault occurs in the apparatus, the short-circuit current passes the earth with the help of a wire. Thus, protecting the system from damage.