Ferrites are ferromagnetic ceramics which have a fairly constant ____________.

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RRB JE EE 22 Apr 2025 Shift 2 CBT 2 Official Paper

Answer 1

The correct answer is option 1.

Properties of Ferrites:

Ferrites are ceramic compounds composed of iron oxide (Fe₂O₃) combined with additional metallic elements like manganese, zinc, or nickel.
They are ferromagnetic, meaning they exhibit strong magnetic properties.
One key characteristic of ferrites is their relatively constant magnetic permeability over a range of frequencies, especially in the high-frequency range.
The higher magnetic materials give the B-H loop (Hysteresis loop) a large area, resulting in a great loss of energy.
High magnetic materials induce a great loss of energy using eddy currents. This will be minimized by reducing the magnetization in the material and increase the resistivity of ferrites.
This makes them ideal for use in transformers, inductors, and RF (radio-frequency) applications.