alleryA coil of wire wound many turns and carrying current becomes a magnet called
ACompass needle made of soft iron
BPermanent bar magnet of nickel
CSolenoid acting as an electromagnet
DElectric capacitor with two plates
Answer & Solution
Correct answer: C. Solenoid acting as an electromagnet
1. The chapter section on electromagnets describes the solenoid.
2. Many turns concentrate the magnetic field along the axis.
3. When current flows it behaves like a bar magnet.
4. So option A is correct.
_Source: Selina Concise Physics Class 10, Ch 10 Electromagnetism (Mistral OCR'd PDF), section on solenoid_
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