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The law J = σE, where J is current density, σ is electrical conductivity and E is field strength is

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The law J = σE, where J is current density, σ is electrical conductivity and E is field strength is Answer: Ohm's law

It is another form of Ohm's law.

Question context

This question is part of 📡 Electronics and Communication Engineering (ECE) within the broader 🛠️ Engineering Essentials subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.