The direction of magnetic lines of force are depend upon:
Correct answer: A. Direction of current
- A. Direction of current
- B. Quantity of current
- C. Both (a) and (b)
- D. None of the above
Explanation
This option is correct because the direction of magnetic lines of force is determined by the right-hand rule. If the thumb points in the direction of the current in a straight conductor, the curled fingers indicate the direction of the magnetic field around it.
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About Electromagnetism
Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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