Question

The current carrying device which produces a magnetic field similar to that of a bar magnet is:

• A. A straight conductor
• B. A circular loop
• C. A solenoid
• D. A circular coil

Answer 1

The Correct Option is C

Phase 1: Grasp Magnetic Field Principles
Electric current in a conductor induces a surrounding magnetic field.
The conductor's configuration dictates the magnetic field's characteristics.

Phase 2: Conceptual Examination of Choices
- A linear conductor generates circular magnetic field lines around it.
- A current loop intensifies the field at its center but does not fully mimic a bar magnet.
- A solenoid (a coiled wire wound cylindrically) creates a magnetic field pattern closely resembling that of a bar magnet.

Phase 3: Deduction
Current flow through a solenoid generates a uniform internal magnetic field and curved external field lines, analogous to a bar magnet. It exhibits distinct north and south poles, mirroring a bar magnet.

Conclusion:
A solenoid