What is meant by heating effect of electric current? Give two applications of heating effect of current.?

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Answer

When current passes through a resistor mainly  resistors with high resistance then the obstruction of flow of current by the resistor causes heating effect ..*It is used in electic irons and toasters.*It is also used in making fuse which is a safety device..

Answer

50J of heat is produced each second in a 2 resistor. Find the potential difference across the resistor.

Answer

Heating Effect of Electric Current

The heating effect of electric current refers to the phenomenon where electric current flowing through a conductor produces heat. This effect is based on the fact that when an electric current passes through a material, it encounters resistance, which leads to the generation of heat energy. The amount of heat produced depends on the magnitude of the current, the resistance of the conductor, and the duration of current flow.

Applications of the Heating Effect of Current:

1. Electric Heating:
The heating effect of electric current finds various applications in our daily lives. One of the most common applications is electric heating. Electric heaters, such as room heaters, water heaters, and electric stoves, utilize this effect to generate heat. In these appliances, an electric current passes through a high-resistance element, usually a coil made of nichrome wire. As the current flows through the coil, it encounters resistance, resulting in the generation of heat. This heat is then transferred to the surrounding medium, such as air or water, to provide warmth or raise the temperature.

2. Incandescent Light Bulbs:
Incandescent light bulbs also rely on the heating effect of electric current. These bulbs consist of a thin tungsten filament that is heated to a high temperature by the passage of electric current. As the filament heats up, it emits visible light. However, a significant portion of the electric energy is converted into heat energy rather than light energy. This is why incandescent bulbs are not energy-efficient, as they waste a considerable amount of energy in the form of heat.

Summary:
The heating effect of electric current refers to the production of heat when an electric current flows through a conductor. This effect is utilized in various applications, including electric heating and incandescent light bulbs. Electric heaters use the heating effect to warm the surroundings, while incandescent bulbs generate light by heating a filament. Understanding the heating effect of current is crucial for designing and using electrical appliances safely and efficiently.

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