Question

mention any two application of convention currents ​

Answer 1

Answer:

• Household ventilation can make our house cool. The air which we breathe out is warmer and lighter. It moves up in the room to go out of the ventilators near the top side of the walls. Fresh and cool air enters the room through windows and doors.
• In a domestic water heater, water is heated in the boiler by a gas burner or heating coil. the hot water expands and becomes lighter in weight. this water rises and flows into the upper part of the water heater. To take the place of hot water, cold water from the storage tank (cistern) falls to the lower part of the water heater to be hot. We take the hot water from the tap attached to the water heater, convection currents help in the continuous supply of the water.
• An air conditioner also uses convection currents to cool a room. Air conditioners are installed near to be the ceiling. The rotary fan of an air conditioner releases cool dry air. The cool air is heavier in weight, so it sinks. the warm air of the room rises because it becomes lighter in weight. The air conditioner draws this warm air to make it cool. In this way, the air circulates again and again, and the desired temperature is gained.

Explanation:

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