Question:Consider the following statements:
1. An object with zero resistance would conduct electricity perfectly.
2. It is possible to float a small animal like a frog inside a magnetic field.
Which of these statements is/are correct?
a) Only 1
b) Only 2
c) Both 1 and 2
d) Neither 1 Nor 2
Superconductors are considered to be perfect diamagnets. A diamagnet is a material that shows repulsive magnetic effects when it is put inside a magnetic field. Or in other words, if you put a diamagnet near a regular magnet, it will be pushed away (or repulsed) from it. All materials are at least somewhat diamagnetic. For this reason it is possible to float a small animal like a frog inside a magnetic field. This is called diamagnetic levitation. But superconductors are even more diamagnetic, so you can use them to levitate things more easily.
Maglev (Magnetic Levitation) trains are high speed trains that function on the principle of electromagnetism--attraction and repulsion. Attraction drives the train forward while repulsion between the train and tracks results in "floating"; reduces friction and increases speed.