Question

Name the forces acting on the car sticking to an electromagnet in a Junkyard. Which one of them is larger?

Answer 1

Hint: In physics, a force is any influence that, when unopposed, causes an object to change its velocity. A force can cause a mass item to change its velocity (which includes starting to move from a standstill), i.e. accelerate. Intuitively, force may be characterised as a push or a pull. A force is a vector quantity since it has both magnitude and direction. The SI unit of Newton is used to measure it (N). The letter F is used to signify force.

Complete answer:
> The magnetic impact on moving electric charges, electric currents, and magnetic materials is described by a magnetic field.
> In a magnetic field, a moving charge experiences a force that is perpendicular to both its own velocity and the magnetic field.
> The magnetic field of a permanent magnet attracts or repels other magnets, as well as ferromagnetic elements like iron.
> Furthermore, a varying magnetic field exerts a force on a variety of non-magnetic materials by altering the mobility of their outer atomic electrons.
> Electric currents, such as those employed in electromagnets, and electric fields that change in time generate magnetic fields that surround magnetised objects.
> Gravity is best explained by the general theory of relativity, which depicts gravity as the result of masses travelling along geodesic lines in a curved spacetime due to an unequal distribution of mass, rather than as a force.
> Now, given the magnetic force (in the upward direction) and the force of gravity (or the car's weight) (downward).

The magnetic force is greater than the gravitational force, so the car will be lifted up.
> Because it may draw the automobile towards itself, the magnetic force is bigger. When the car is stuck to the electromagnet magnetic force, the gravitational force exerted on the automobile is weak. Because it may draw the automobile towards itself, magnetic force is stronger.
Therefore, we can conclude that the magnetic force acting on the car (in the junkyard) will be larger than the remaining forces.

Note:
An electromagnet is a magnet whose magnetic field is generated by an electric current. Wire wrapped into a coil is used to make electromagnets. A current flowing through the wire produces a magnetic field that is focused in the hole, which serves as the coil's core. When the current is switched off, the magnetic field vanishes. The wire turns are frequently coiled around a magnetic core composed of a ferromagnetic or ferrimagnetic material such as iron, which concentrates the magnetic flux and produces a stronger magnet.