if you want to remove an article from website contact us from top.

    why does the cord of an electric heater not glow while the heating element does class 10th

    Mohammed

    Guys, does anyone know the answer?

    get why does the cord of an electric heater not glow while the heating element does class 10th from screen.

    Why does the cord of an electric heater not glow while the heating element does?

    The heating element of the heater is made up of alloy which has very high resistance so when current flows through the heating element, it becomes too hot and glows red. But the resistance of cord which is usually of copper or aluminum is very low so it does not glow.

    Academic QuestionsPhysics QuestionsWhy Does The Cord Of An Electric Heater Not Glow While The Heating Element Does

    Why does the cord of an electric heater not glow while the heating element does?

    The heater’s heating element is made up of an alloy that has very high resistance, so when current flows through the heating element, it becomes too hot and glows red. But the cord’s resistance, which is usually of copper or aluminium, is low, so it does not glow.

    Electric heater

    An electric heater is an electrical device that converts an electric current into heat. The heating element inside every electric heater is an electrical resistor and works on the principle of Joule heating: an electric current passing through a resistor will convert that electrical energy into heat energy.

    The advantages of using electric heaters are:

    Initial Low-Cost Investment.

    Clean Operation. No Toxic Gases. Smaller in Size. Ease of Control. Ozone Friendly.

    Was this answer helpful?

    4 (98)

    Related Questions & Answers

    A Catalyst Has No Effect On What

    Find The Area Of Quadrilateral With Diagonal 13m And Offsets 7m And 3m

    The C H Bond Distance Is Longest In I C2h2 Ii C2h2br2 Iii C2h4 Iv C2h6

    How Can One Describe Hess Law

    What Is The Function Of Olfactory Receptors

    The Si Unit Of Weight Is

    State If The Given Statement Is Correct Or Incorrect

    Explain Electrons And Photons

    What Is Screening Effect

    Which Metal Do Not Corrode Easily

    स्रोत : byjus.com

    Why does the cord of an electric heater not glow while the heating element does ?

    Click here👆to get an answer to your question ✍️ Why does the cord of an electric heater not glow while the heating element does ?

    Question

    Why does the cord of an electric heater not glow while the heating element does ?

    Medium Open in App

    Updated on : 2022-09-05

    Solution Verified by Toppr

    Solve any question of Electricity with:-

    Patterns of problems

    >

    Was this answer helpful?

    420 23

    स्रोत : www.toppr.com

    Why does the cord of an electric heater not glow while class 11 physics CBSE

    Why does the cord of an electric heater not glow while the heating element does

    Why does the cord of an electric heater not glow while the heating element does?

    Answer Verified 234.3k+ views

    Hint: Here, we will proceed by discussing the electric heaters. Then, we will explain the working principle of an electric heater. Finally, we will write down the reason for the glowing of the heating element of the heater.

    Complete step-by-step answer:

    Today a wide variety of heaters are available on the market. Whilst some of the same concepts apply to most heaters, there are slight differences in each make and model. While many furnaces are powered by coal, oil, or other fossil fuels, smaller heaters mostly rely on electrical power. The electrical resistor is the primary component common to all electric heaters.

    When you turn on a heater, the electrical current generated heats up the components of the nichrome wire (best known as the heating coils) within the device. When the current passes through the resistor electrical energy is converted into heat. That is why electric heaters are also known as heating units for resistance.

    The next step in the heating process depends on whether or not the heater has an electric fan built on it. It can help bring cool air into the radiator if there is a fan. The air moves through the heating elements and is then pushed back into the room that's close to how hair dryers operate. This is also called convection heating since the heat is transferred through the air. Convection heaters provide a good way to quickly warm up a space by getting hot air flowing around the house. If the heater has no fan, air reaches the device from the below. The air flow passes through the coils, is heated and eventually makes its way out at the top of the device.

    An electric heater works on the principle of the electric current's heating effect. The heater's heating element blocks the electric current and will not let it through. The heater's heating element consists of an alloy that has very high resistance, so that when the current flows through the heating element it becomes too hot and glows red. The heating element does not melt due to their high resistivity. But the cord's resistance where the cord is normally made of copper or aluminium is very small so it doesn't glow. The electric heater's cord is a good electricity conductor so it doesn't get hot and doesn't glow either.

    Note: Direct heating, as the name implies, is a heating method by which the heater is directly immersed in the medium to be heated (depending on the manufacturing process, it may be liquid or gas). It is the most effective heating process, since there is no loss of heat transfer or thermal lag. Indirect heating is based on the basic concept of the transfer of heat from the hotter to the colder medium. The system does not directly use electric heaters.

    Crack JEE 2024 with top teachers

    Try Vedantu PRO for free

    Live Interactive Classes

    In-class doubt-solving

    Practice tests and quizzes

    Latest Vedantu courses for you

    Grade 11 Science | CBSE | SCHOOL | English

    CBSE PCM (2022-23)

    Academic year 2022-23

    ENGLISH

    Unlimited access till final school exam

    School Full course for CBSE students

    500+ chapter specific short courses

    Physics Chemistry Maths ₹9,000 per year Select and buy

    Recently Updated Pages

    Which element possesses the biggest atomic radii A class 11 chemistry JEE_Main

    The highly efficient method of obtaining beryllium class 11 chemistry JEE_Main

    Which of the following sulphates has the highest solubility class 11 chemistry JEE_Main

    Amongst the metal Be Mg Ca and Sr of group 2 of the class 11 chemistry JEE_Main

    Which of the following metals is present in the greencolored class 11 chemistry JEE_Main

    To prevent magnesium from oxidation in the electrolytic class 11 chemistry JEE_Main

    Trending doubts

    Difference Between Plant Cell and Animal Cell

    Write an application to the principal requesting five class 10 english CBSE

    Give 10 examples for herbs , shrubs , climbers , creepers

    Write a letter to the principal requesting him to grant class 10 english CBSE

    List out three methods of soil conservation

    Change the following sentences into negative and interrogative class 10 english CBSE

    A Short Paragraph on our Country India

    Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE

    What is the difference between anaerobic aerobic respiration class 10 biology CBSE

    Related Questions Question 1

    An electric heater of resistance

    115Ω 115Ω is made to work on 230V 230V supply.

    (A) What will be the current through this heater while it is working?

    (B) Calculate the power of this heater.

    (C) Calculate the heat generated by the heater if it works for 10 minutes.

    Question 2

    A thermally insulated piece of metal is heated under atmosphere by an electric current so that it receives electric energy at a constant power

    P P

    . This leads to an increase of the absolute temperature

    T T

    of the metal with time

    t t as follows T=a t 1/4 T=at1/4

    Then the heat capacity

    C p Cp is : (A) 4P T 3 a 4 4PT3a4 (B) 4P

    स्रोत : www.vedantu.com

    Do you want to see answer or more ?
    Mohammed 15 day ago
    4

    Guys, does anyone know the answer?

    Click For Answer