Question

A straight wire with a current placed in a uniform magnetic field experiences a force that is ______________.Group of answer choicesperpendicular to the fieldproportional to the size of the currentall of theseperpendicular to the current

Answer 1

To find:

The magnetic force.

Explanation;

The force experienced by the wire carrying current, placed in a uniform magnetic field is given by the formula,

`F=\text{IBLsin}\theta`

Where I is the current through the wire, B is the magnetic field, L is the length of the wire, and θ is the angle between the magnetic field and wire.

From the above equation, it is clear that the force experienced by the wire is directly proportional to the magnitude or size of the current passing through the wire.

The direction of the field is given by Fleming's left-hand rule. By this rule, the magnetic force acting on the wire will be perpendicular to both the field and the current.

Final answer:

Thus all of the given options are true.

Therefore the correct answer is option C, "All of these."