Question

Electricity produced from the coal is called
A. Thermal power
B. Nuclear power
C. Solar power
D. Hydel power

Answer 1

Hint: In a thermal power station, coal is burned in a boiler to convert water into the stream. This stream enters into a turbine and rotates the shaft. This shaft is then connected to a generator that makes power as the shaft turns. This is how coal is converted into electricity.

Complete answer:
Electricity produced from Coal is known as Thermal power. Thermal power generation consists of using steam power created by burning oil, liquid natural gas (LNG), coal and any other substance to rotate generators and create electricity.
Therefore, option (A) is correct.

Additional information:
Coal is an end product of millions of years of decomposition. Coal can also be said to be stored in solar energy. At first, the plant observes energy from the sunlight through the process of photosynthesis and converts it into plant matter. Animals, on the other hand, feed on these plants and will store them in their own bodies. Over millions of years accumulated plant and animal matter is covered by sediment. This will be stored within the earth’s crust, gradually being transformed into hard black solids. These are transformed into black solids by the complete weight of the surface of the earth. Like the other fossil fuels, coal will release its stored energy within a few minutes when burned to generate electricity which was created millions of years ago. Coal cannot be replenished once it is extracted and burned, making it a finite and non-renewable source.

Note:
Thermal power input in power plants is measured in Megawatts thermal (\[MWt\]). However, the thermal power output is measured as megawatts electric (\[MWe\]). Since not all the input heat can be converted into electricity the \[MWt\] value is always larger than the \[MWe\] value.