Question

You have a magnet that is 2.3cm in diameter and 9cm long. At the north pole...

You have a magnet that is 2.3cm in diameter and 9cm long. At the north pole of this magnet, the magnetic field is 0.09T. You want to see if you can construct a solenoid with the same dimensions as the bar magnet with the same strength. If you constructed the solenoid out of 18-gauge wire (diameter 1.02mm), how many turns would it take when passing 2.2A through it to create the same magnetic field? Does this seem like a reasonable solenoid? Explain.

0 0
Add a comment Improve this question Transcribed image text
Answer #1

Magnetic field, B = u0 NI/L

0.09 = (4 pi x 10^-7) x N x 2.2/0.09

Number of turns, N = 2932

For such a small solenoid, these number of turns are not possible. So, this solenoid is not reasonable

Comment in case any doubt please rate my answer....

Add a comment
Know the answer?
Add Answer to:
You have a magnet that is 2.3cm in diameter and 9cm long. At the north pole...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT