MCQ practice · SSC Physics Board questions · Chapter 4: Work, Power and Energy
Heating the junction of two different metals in a thermocouple directly produces which energy?
Think it through first, then pick an option.
- a mechanical energy
- b light energy
- c electrical energy
- d geothermal energy
Answer and explanation
Correct answer: c electrical energy
The book says heating the junction of two different metals in a thermocouple directly produces electricity. Mechanical energy or light is not produced this way, and geothermal energy is the earth's inner heat.
Why the other options are wrong
- a mechanical energy: This is not the answer: The book says heating the junction of two different metals in a thermocouple directly produces electricity. Mechanical energy or light is not produced this way, and geothermal energy is the earth's inner heat.
- b light energy: This is not the answer: The book says heating the junction of two different metals in a thermocouple directly produces electricity. Mechanical energy or light is not produced this way, and geothermal energy is the earth's inner heat.
- d geothermal energy: This is not the answer: The book says heating the junction of two different metals in a thermocouple directly produces electricity. Mechanical energy or light is not produced this way, and geothermal energy is the earth's inner heat.
Your account is open, so all 30,000+ MCQs from every chapter are yours. Start practising SSC Physics →
Want to keep going?
A free account carries you on to the next questions and opens 30,000+ MCQs from every chapter. Join before launch and Chirkut bundles are 60% off.
The ones you missed, worth one more look