CBSE · Class 7 · Science · Electric Current and its EffectsAn electromagnet consists of a coil of insulated wire wound around a piece of:
Step-by-Step Solution
An electromagnet is made by winding a coil of insulated wire around a piece of soft iron, which acts as a magnet when electric current flows through the coil.
Detailed Options Breakdown
Option : Plastic
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electric Current and its Effects.
Option 1: Copper
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electric Current and its Effects.
Option 2: Soft iron (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 3: Wood
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electric Current and its Effects.
💡 Study Guide: This question tests core syllabus concepts from Electric Current and its Effects. For formulas, key summaries, and mock exam reference guides, read the full Electric Current and its Effects Revision Notes.