Question
Download Solution PDFConsider the following statements, which of the following is true about the earth wire
- It is red colour and provides current to electrical appliances at home
- Black in colour and transport excess of current in the household supply to power lines
- Blue in colour and transport excess of current to earth and protect the equipments
- Green in colour and by passes excess of current in the household circuit to protect the appliances
Answer (Detailed Solution Below)
Option 4 : Green in colour and by passes excess of current in the household circuit to protect the appliances
India's Super Teachers for all govt. exams Under One Roof
FREE
Demo Classes Available*
Enroll For Free Now
Detailed Solution
Download Solution PDFCONCEPT:
- For the proper functioning of an electrical appliance uninterrupted, the power supply is required, while operating an electrical appliance heat loss occurs as per Joule's law of heating.
- In India, the power supply is achieved through overhead power poles
- There are three wires in household wiring
- The red coloured wire which is known as a live wire, which supplies current to electrical appliances.
- Black coloured wire which is known as Neutral wire, which takes back the circuit to the original power supply or else it works as another earthing wire.
- Green coloured wire which is known as Earth wire, the function of an earth wire is to bypass the excess current in household wiring to earth in order to protect the electrical appliances.
EXPLANATION :
- The major aim of household wiring is to supply the proper amount of current to operate the electrical appliances
- From the above, it is clear that Green coloured wire which is known as Earth wire, the function of an earth wire is to bypass the excess current in household wiring to earth in order to protect the electrical appliances.
- Hence, option 4 is the answer
India’s #1 Learning Platform
Start Complete Exam Preparation
Daily Live MasterClasses
Practice Question Bank
Video Lessons & PDF Notes
Mock Tests & Quizzes
Trusted by 7.2 Crore+ Students