Electromagnetism, find magnitude and direction of the resulting force on wire.

In summary, electromagnetism is a branch of physics that deals with electromagnetic fields and their interactions with electrically charged particles. An electromagnet is created by passing an electric current through a wire, and the resulting force on a wire is affected by the strength of the magnetic field, the amount of current, and the angle between the wire and the magnetic field. The magnitude and direction of the force can be calculated using the formula F = BILsinθ. Electromagnetism has many real-world applications, including electric motors, generators, MRI machines, and communication technologies.
  • #1
RaDitZ
3
0
A long straight horizontal wire carries a current of 70 amperes towards the east. The wire is placed in a uniform magnetic field of intensity 0.15 T towards the north.

Find the magnitude and direction of the resulting force on a 25m length of this wire



F=ILB sin [tex]\theta[/tex]



F = 70*25*0.15sin 90

F = 262.5 N towards the right

Is it the right answer?
 
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  • #2
The force should be perpendicular to east and north. Using Flemming's left hand rule find the direction.
 
  • #3


Yes, that is the correct answer. The magnitude of the resulting force on the wire is 262.5 N and the direction is towards the right. This is due to the right-hand rule, where the direction of the magnetic field (north) and the direction of the current (east) determine the direction of the force.
 

Related to Electromagnetism, find magnitude and direction of the resulting force on wire.

1. What is electromagnetism?

Electromagnetism is a branch of physics that deals with the study of electromagnetic fields and their interactions with electrically charged particles.

2. How is an electromagnet created?

An electromagnet is created by passing an electric current through a wire, which generates a magnetic field around the wire. The strength of the magnetic field can be increased by increasing the amount of current or by coiling the wire into a solenoid.

3. What factors affect the magnitude of the resulting force on a wire?

The magnitude of the resulting force on a wire is affected by the strength of the magnetic field, the amount of current flowing through the wire, and the angle between the wire and the magnetic field.

4. How do you calculate the magnitude and direction of the resulting force on a wire?

The magnitude of the resulting force on a wire can be calculated using the formula F = BILsinθ, where B is the strength of the magnetic field, I is the current, L is the length of the wire, and θ is the angle between the wire and the magnetic field. The direction of the force is perpendicular to both the magnetic field and the direction of the current.

5. What are some real-world applications of electromagnetism?

Electromagnetism has numerous real-world applications, including electric motors, generators, transformers, MRI machines, and particle accelerators. It also plays a crucial role in communication technologies such as radios, televisions, and cell phones.

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