The purpose of the third prong on a common electric plug for an appliance is to
A)handle three-phase electricity.
B)provide an alternate live wire.
C)connect the appliance to zero ground potential.
D)substitute for a safety fuse.
E)all of these.

Question

Quizplus · Accepted Answer

The third prong on a common electric plug is the ground pin and it is used to connect the appliance to zero ground potential which helps protect against electric shock. It does not handle three-phase electricity or provide an alternate live wire. It also does not substitute for a safety fuse (which is typically located in the appliance itself).

The Purpose of the Third Prong on a Common Electric