If the current in a conductor is doubled while it remains perpendicular to the same magnetic field, how does the force on the conductor change?
The force doubles
The force experienced by a current-carrying conductor placed in a magnetic field is given by F = BIL, where B is the magnetic field, I is the current, and L is the length of the conductor.
Since the conductor stays perpendicular to the same magnetic field, B and L remain constant, so the force is directly proportional to the current I.
Doubling the current I therefore doubles the force F acting on the conductor.
Hence, the correct answer is that the force doubles.
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Important Questions from Magnetism
The magnet used to lift and transport heavy loads like big metals, steel girders and scrap iron objects for loading and unloading purposes is known as____.
A suspended bar magnet is rotated. It will come to rest in the north-south direction. This shows that the earth has its own_______.
When a bar magnet is cut into two equal parts, then:
Consider the following statements about a magnetic field.
(i) A magnetic field has both magnitude and direction.
(ii) The direction of magnetic field lines inside a bar magnet is from its south pole to its north pole.
(iii) Magnetic field lines are closed curves.
Select the correct option.
What will happen if a collection of positive and negative charges are passed at a high speed through a magnetic field which is perpendicular to the direction of motion of the charges? (Assume that both kind of charges are NOT going to recombine)
