Question

6
Explain three reasons of accidents that may be caused in our household circuits using
electricity. Describe the role of the following safety devices in preventing these accidents.
Explain.
(i)
Electrical fuse
(ü)
Earthing of electrical appliance

Answer 1

Answer:

Earth wire

Explanation:

Bcz scientist has been said that soln:0.01_2 is AWM law

Answer 2

(i) The fuse breaks the circuit if a fault in an appliance causes too much current flow. This protects the wiring and the appliance if something goes wrong. The fuse contains a piece of wire that melts easily. If the current going through the fuse is too great, the wire heats up until it melts and breaks the circuit.

(ii) Earthing System or Grounding System in an electrical network work as a safety measure to protect human life as well as equipment, the main objective of the Earthing system is to provide an alternative path for dangerous currents to flow so that accidents due to electric shock and damage to the equipment can be avoided.