-
A.
the appliances are maintained at a lower p.d than the earth
-
B.
both the a.c and d.c sources can be used
-
C.
a person touching the appliances is safe from electric shock
-
D.
the appliances are maintained at a higher p.d than the earth
Correct Answer: Option C
Explanation
Earthing is used to protect you from an electric shock. It does this by providing a path (a protective conductor) for a fault current to flow to earth. It also causes the protective device (either a circuit-breaker or fuse) to switch off the electric current to the circuit that has the fault.
Report an Error
Ask A Question
Download App
Quick Questions
Contributions ({{ comment_count }})
Please wait...
Modal title
Report
Block User
{{ feedback_modal_data.title }}