Curie Point -Multiple Choice Questions Quiz

Interactive MCQs on “Curie Point”:

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: Question: What is Curie Point?

(a) The temperature at which a ferromagnetic material loses its magnetic properties.
(b) The temperature at which a ferromagnetic material gains its magnetic properties.
(c) The temperature at which a diamagnetic material becomes magnetic.
(d) The temperature at which a paramagnetic material becomes non-magnetic.

Question 2: Question: What happens to the magnetic susceptibility of a ferromagnetic material at the Curie Point?

(a) It increases abruptly.
(b) It decreases abruptly.
(c) It becomes zero.
(d) It remains unchanged.

Question 3: Question: Who discovered the Curie Point?

(a) Pierre Curie
(b) Marie Curie
(c) Albert Einstein
(d) Isaac Newton

Question 4: Question: Which of the following materials is not ferromagnetic?

(a) Iron (Fe)
(b) Nickel (Ni)
(c) Cobalt (Co)
(d) Copper (Cu)

Question 5: Question: What type of magnetic order do ferromagnetic materials exhibit below the Curie Point?

(a) Antiferromagnetic
(b) Paramagnetic
(c) Diamagnetic
(d) Ferromagnetic

Question 6: Question: What happens to the atomic magnetic moments of a ferromagnetic material above the Curie Point?

(a) They align in the same direction.
(b) They align in opposite directions.
(c) They become random.
(d) They remain unchanged.

Question 7: Question: Which unit is used to measure the Curie Point?

(a) Kelvin (K)
(b) Celsius (°C)
(c) Fahrenheit (°F)
(d) Joules (J)

Question 8: Question: The Curie Point of iron is approximately:

(a) 1530 K (1257°C)
(b) 1200 K (927°C)
(c) 768 K (495°C)
(d) 231 K (-42°C)

Question 9: Question: What is the significance of the Curie Point in practical applications?

(a) It is essential for the generation of electricity in power plants.
(b) It is crucial for the operation of magnetic resonance imaging (MRI) machines.
(c) It is used to demagnetize ferromagnetic materials.
(d) It is used in the production of superconductors.

Question 10: Question: What happens to the magnetic permeability of a ferromagnetic material at the Curie Point?

(a) It decreases.
(b) It increases.
(c) It becomes zero.
(d) It remains constant.