When an electric current is passed through a conductor, the conductor becomes hot after some time and produce heat. This happens due to the conversion of some electric energy passing through the conductor into heat energy. This effect of electric current is called heating effect of current.
What is the heating effect of electric current?
When an electric current passes through a conductor (like a high resistance wire) the conductor becomes hot after some time and produces heat. This is called heating effect of Electric Current. Example 1. A bulb becomes hot after its use for some time. This is because of heating effect of electric current.
What is heating effect of electric current Ncert?
When electric current is supplied to a purely resistive conductor, the energy of electric current is dissipated entirely in the form of heat and as a result, resistor gets heated. The heating of resistor because of dissipation of electrical energy is commonly known as Heating Effect of Electric Current.
What are 3 effects of electric current?
Hence, the three effects of electric current are heating effect, magnetic effect and chemical effect.
Where is heating effect of current used?
APPLICATIONS OF THE HEATING EFFECT OF CURRENT
Electrical Heating Appliances: The heating effect of current is utilised in the working of electrical heating appliances such as electric iron, electric kettle, electric toaster, electric oven, room heaters, water heaters (geysers), etc.
What is the formula of heating effect?
Hence the heating effect produced by an electric current, I through a conductor of resistance, R for a time, t is given by H = I2Rt. This equation is called the Joule’s equation of electrical heating.
How is the heating effect of electric current used in an electric bulb?
Electric bulb works on the principle of heating effect of electric current. When electric current passes through a very thin, high resistance tungsten filament of an electric bulb, the filament becomes white hot and emits light.
What is the chemical effects of electric current?
The passage of an electric current through a conducting solution causes chemical reactions. As a result, bubbles of a gas may be formed on the electrodes. Deposits of metal may be seen on electrodes. Changes of colour of solutions may occur.
What are the five effects of electric current?
The main effects are heating, chemical and magnetic effects.
Effects of electric current
- Heating effect. When the flow of current is ‘resisted’ generally heat is produced. is is because the electrons while moving in the wire or resistor su er resistance. …
- Chemical effect. …
- Magnetic effect of Electricity.
How do we use electricity in our daily lives?
People use electricity for lighting, heating, cooling, and refrigeration and for operating appliances, computers, electronics, machinery, and public transportation systems.
Which effect of current causes the bulb to glow?
Therefore, the effect of current responsible for the glow of the bulb in an electric circuit is the heating effect. So, the correct answer is “Option B”.
What is the heating effect of electric current give two examples?
(1)Electric Bulb: The filament of the bulb is made of tungsten. It gives light due to the heating effect of the electric current. (2)Electric iron: It is made of alloys. Alloys have high melting point.
What are the advantages of heating effect of current?
When an electric current is passed through a conductor, it generates heat due to the hindrance caused by the conductor to the flowing current. The work done in overcoming the hindrance to the current generates heat in that conductor.
What are the important applications of an electric bulb?
- Electric Bulb: In an electric bulb, the filament of bulb gives light because of heating effect of electricity. …
- Electric iron: The element of electric iron is made of alloys having high melting point. …
- Electric fuse: Electric fuse is used to protect the electric appliances from high voltage; if any.