Peltier Effect -Multiple Choice Questions Quiz

Interactive MCQs on “Peltier Effect”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What is the Peltier effect?

(a) The generation of a voltage across a thermocouple when there is a temperature gradient
(b) The cooling or heating of a junction between two different conductors when an electric current flows through it
(c) The change in resistance of a material with temperature
(d) The change in capacitance of a material with temperature

Question 2: Who discovered the Peltier effect?

(a) Thomas Seebeck
(b) Jean Peltier
(c) Jacques Charles
(d) Alessandro Volta

Question 3: What is the direction of heat flow in a Peltier cooler when an electric current is applied?

(a) From the cold side to the hot side
(b) From the hot side to the cold side
(c) No heat flow occurs
(d) Heat flow depends on the type of conductor used

Question 4: Which of the following is an application of the Peltier effect?

(a) Generating electricity from sunlight
(b) Cooling electronic devices
(c) Measuring temperature using a thermocouple
(d) Amplifying electrical signals

Question 5: What type of materials are commonly used in Peltier coolers?

(a) Insulators
(b) Superconductors
(c) Semiconductors
(d) Conductors

Question 6: What is the coefficient of performance (COP) of a Peltier cooler?

(a) The ratio of the heat absorbed to the heat dissipated
(b) The ratio of the heat absorbed to the work done by the electric current
(c) The ratio of the heat dissipated to the work done by the electric current
(d) The ratio of the heat absorbed to the temperature difference across the cooler

Question 7: What happens to the Peltier effect when the direction of the electric current is reversed?

(a) The Peltier effect remains the same
(b) The cooling effect becomes heating, and vice versa
(c) The Peltier effect becomes less efficient
(d) The cooling effect becomes weaker, but heating becomes stronger

Question 8: In a Peltier cooler, which side becomes cooler?

(a) The side where the electric current enters
(b) The side where the electric current exits
(c) Both sides become equally cooler
(d) Neither side becomes cooler

Question 9: What happens to the Peltier effect as the electric current flowing through the junction increases?

(a) The cooling effect becomes stronger
(b) The heating effect becomes stronger
(c) The cooling effect and heating effect both increase
(d) The Peltier effect remains constant regardless of the electric current

Question 10: Which of the following devices does not use the Peltier effect?

(a) Thermoelectric generator
(b) Thermoelectric cooler
(c) Heat pump
(d) Barometer