Which of the following devices convert heat energy to electrical energy?
Question 1 Report
Which of the following devices convert heat energy to electrical energy?
Answer Details
The device that converts heat energy to electrical energy is a thermocouple. A thermocouple is made up of two different metals that are joined together at one end. When one junction of the two metals is heated, it generates a small voltage. This voltage is a result of the temperature difference between the two junctions, which is known as the Seebeck effect. The voltage generated by the thermocouple can be used to power a circuit or device. Therefore, the correct answer is "thermocouple".
A transformer is a device that converts high-voltage, low-current power to low-voltage, high-current power (or vice versa). A dynamo is a device that converts mechanical energy to electrical energy. A thermostat is a device that controls temperature by turning a heating or cooling system on and off. Therefore, these devices do not convert heat energy to electrical energy, and they are not the correct answers.
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