What is the relationship between magnetic field strength and distance?

What is the relationship between magnetic field strength and distance?

Magnetic Fields Varying as an Inverse Cube For both monopoles and dipoles, the field strength decreases as the distance from the source increases. , often called the inverse square law. For electric dipoles, the field strength decreases more rapidly with distance; as R -3 .

What is the relation between magnetic field and current?

A current-carrying wire feels a force in the presence of an external magnetic field. It is found to be F=Bilsinθ F = Bi l sin θ , where ℓ is the length of the wire, i is the current, and θ is the angle between the current direction and the magnetic field.

Is the magnetic field around a solenoid is the same shape as the magnetic field around a bar magnet?

When an electric current flows, the solenoid acts as an electromagnet. The shape of the magnetic field is very similar to the field of a bar magnet. The field inside a solenoid is strong and uniform. The small magnetic fields caused by the current in each coil add together to make a stronger overall magnetic field.

Does voltage increase with distance?

If you increase the distance between the two plates electric field does not change just because electric field= surface charge density/ epsilon. so E=V/D gives increment in V as D increses so that electric field remain same. The explanation is simple. Therefore increasing the distance increases the voltage.

Why is gravity measured in N kg?

The Earth’s gravitational field strength (g) is 10 N/kg. This means that for each kg of mass, an object will experience 10 N of force.

What is the force of gravity in N?

For example, if you had an object of 10 kg and 100 kg falling in free fall at the same time, the Fg (gravitation force) exerted on the 10 kg object is 10*9.8=98 N, and for the 100 kg object it is 100*9.8=980 N, so the force of gravity is proportional to the mass of the object as acceleration stays the same (9.8 m/s/s …