- #31
moenste
- 711
- 12
L = N 2 π r?TSny said:
B = Q N 2 π r u / π r2 N = Q 2 u / r that gets B = 0.2 T. Thank you!
Calculate the magnetic flux density
- Thread starter moenste
- Start date
Click For Summary
Homework Help Overview
The discussion revolves around calculating the magnetic flux density near a large air-cored electromagnet by measuring the induced flow of charge in a small coil. Participants are tasked with determining the magnetic flux density based on given parameters such as the radius of the coil, resistance per unit length, and total charge flow.
Discussion Character
- Exploratory, Assumption checking, Mathematical reasoning
Approaches and Questions Raised
- Participants explore the relationship between charge, magnetic flux density, and resistance, questioning the assumptions made regarding the number of turns and the total resistance. They discuss how to express resistance in terms of the number of turns and the resistance per unit length.
Discussion Status
The discussion is active, with participants providing insights and questioning the assumptions about the number of turns and resistance. Some participants suggest working with symbolic expressions rather than numerical values, while others express uncertainty about how to relate the length of wire to the number of turns.
Contextual Notes
Participants note the lack of explicit values for certain parameters, such as the total length of wire and the number of turns, which complicates the calculations. The discussion emphasizes the need to derive expressions based on given relationships rather than relying on specific numerical values.
Similar threads
- · Replies 6 ·
- · Replies 4 ·
- · Replies 4 ·
- · Replies 4 ·
- · Replies 0 ·
- · Replies 7 ·
- · Replies 3 ·
- · Replies 19 ·