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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

Check Answer:

Answer:
Explanation

 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.