The main constituent of Permalloy is?

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The main constituent of Permalloy is? Answer: Nickel-Iron

The main constituents of Permalloy are nickel (Ni) and iron (Fe), typically in a ratio of about 80% nickel to 20% iron, although other compositions exist. This iron-nickel alloy is known for its high magnetic permeability, which makes it useful for applications such as magnetic shielding, transformers, and inductors.

Question context

This question is part of ⚡ Electrical Engineering within the broader 🛠️ Engineering Essentials subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.