# Electromagnetic field question

• helloabhihere
How can this equation be rearranged to solve for the magnetic field B? In summary, the conversation discusses finding the magnetic field B inside a large field coil by using the induced emf measured on a test coil. The equation for the induced emf in an AC magnetic field is mentioned, and it is suggested that this equation can be rearranged to solve for B.
helloabhihere

## Homework Statement

How would you find the magnetic field B inside the large field coil after you measured the induced emf on a test coil?

i am not sure.

## The Attempt at a Solution

i need some help in how to start this as i have 0 clue

helloabhihere said:

## Homework Statement

How would you find the magnetic field B inside the large field coil after you measured the induced emf on a test coil?

i am not sure.

## The Attempt at a Solution

i need some help in how to start this as i have 0 clue

I'm presuming that they are talking about an AC B-field.

What is the equation for the EMF induced in a coil immersed in an AC magnetic field?

## 1. What is an electromagnetic field?

An electromagnetic field is a physical field that is created by electrically charged particles and is responsible for the behavior of electrically charged objects. It is composed of both an electric field and a magnetic field, and the strength and direction of the field can be affected by the movement of charges.

## 2. How is an electromagnetic field created?

An electromagnetic field is created by the movement of electrically charged particles, such as electrons. When these particles move, they create a disturbance in the surrounding space, which then creates an electric and magnetic field. The strength and direction of the field depend on the speed and direction of the charged particles.

## 3. What are the effects of an electromagnetic field on living organisms?

An electromagnetic field can have both positive and negative effects on living organisms. In small doses, it can be beneficial for the body's functioning as it is involved in many biological processes. However, prolonged exposure to high levels of electromagnetic fields can have harmful effects, such as disrupting the body's natural electrical signals and causing tissue damage.

## 4. How are electromagnetic fields used in technology?

Electromagnetic fields are used in various technologies, such as electricity generation, radio and television broadcasting, and communication devices. They are also used in medical equipment, such as MRI machines, which use strong magnetic fields to produce images of the body's internal structures.

## 5. How can we protect ourselves from harmful electromagnetic fields?

To protect ourselves from harmful electromagnetic fields, we can limit our exposure to sources such as high-voltage power lines and electronic devices. Additionally, we can use protective measures such as shielding materials and distance ourselves from the source of the field. It is also important to follow safety guidelines and regulations set by governing bodies to minimize exposure to harmful levels of electromagnetic fields.

• Engineering and Comp Sci Homework Help
Replies
17
Views
3K
• Electromagnetism
Replies
1
Views
330
• Classical Physics
Replies
2
Views
132
• Engineering and Comp Sci Homework Help
Replies
1
Views
1K
• Engineering and Comp Sci Homework Help
Replies
20
Views
2K
• Electromagnetism
Replies
11
Views
2K
• Electrical Engineering
Replies
7
Views
132
• Engineering and Comp Sci Homework Help
Replies
5
Views
2K
• Introductory Physics Homework Help
Replies
5
Views
167
• Electromagnetism
Replies
4
Views
932