Diamagnetic Material Identification
Magnetic materials are classified based on their behavior in an external magnetic field. The main types are diamagnetic, paramagnetic, and ferromagnetic.
- Diamagnetic materials are weakly repelled by a magnetic field. Their magnetic susceptibility is negative and small.
- Paramagnetic materials are weakly attracted to a magnetic field. Their magnetic susceptibility is positive and small.
- Ferromagnetic materials are strongly attracted to a magnetic field and can retain magnetization.
Material Properties Analysis
Let's examine the magnetic properties of the given options:
- Aluminium: Paramagnetic. It is weakly attracted by magnetic fields.
- Oxygen: Paramagnetic. Although often thought of as diamagnetic due to its molecular structure, diatomic oxygen (O2) is paramagnetic because it has unpaired electrons.
- Lead: Diamagnetic. Lead exhibits weak repulsion when placed in a magnetic field.
- Nickel: Ferromagnetic. Nickel is strongly attracted to magnets and is commonly used in magnetic applications.
Based on these properties, Lead is the diamagnetic material among the choices.
Important Questions from Properties of Materials
The photoelectric current depends on which of the following factors?
1. The frequency of the incident light
2. The intensity of the incident light
3. The potential difference between the electrodes
4. The photosensitivity of the non-mentalVanadium is added to steel as an alloying element to
Babbit is an alloy of
To improve the machinability, the alloying element of steel is:
Which of the following hardness tests is best suitable for brittle materials such as ceramics?
