A metallic conductor is held vertically upright, such that electric current in it flows in the upward direction.What is the direction of the magnetic lines of force around the conductor?
Correct answer: C. Anticlockwise direction
- A. Parallel to the conductor
- B. In clockwise direction
- C. Anticlockwise direction
- D. None of these
Explanation
The direction of magnetic field in the conductor can be found out by right hand thumb rule. As the direction of the current is in upward and if we keep our thumb along the direction of the current then the curl fingers will give the direction of the magnetic field which is anticlockwise direction.
This question appeared on the UHS MDCAT 2017 paper, which you can sit online with every answer explained.
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About Magnetic Flux Density
Magnetic flux density measures the magnetic force acting on a current carrying conductor or moving charge in a magnetic field. Work includes the relations B equals F divided by IL and F equals qvB, the tesla as its SI unit, field direction and the distinction between flux density and magnetic flux.
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