Calculating the current in a solenoid

  • Thread starter Thread starter couponcoocoo
  • Start date Start date
  • Tags Tags
    Current Solenoid
Click For Summary
SUMMARY

The discussion focuses on calculating the current in a short-circuited solenoid with radius b, n turns, and rotating in a uniform magnetic field B. The resistance (R) and inductance (L) of the solenoid are critical parameters. Participants emphasize the importance of applying Faraday's Law of Induction to derive the induced voltage, which can then be analyzed as a series circuit involving resistance and inductance. The solution requires understanding the relationship between the magnetic field and the induced voltage over time.

PREREQUISITES
  • Understanding of Faraday's Law of Induction
  • Knowledge of series circuits involving resistors and inductors
  • Familiarity with sinusoidal voltage concepts
  • Basic principles of electromagnetism
NEXT STEPS
  • Study the derivation of induced voltage using Faraday's Law
  • Learn about the behavior of RLC circuits under sinusoidal voltage
  • Explore the effects of angular velocity on induced electromotive force (EMF)
  • Investigate the relationship between inductance, resistance, and current in AC circuits
USEFUL FOR

Students and educators in physics, electrical engineering professionals, and anyone interested in the principles of electromagnetism and circuit analysis.

couponcoocoo
Messages
1
Reaction score
0

Homework Statement



A short-circuited solenoid of radius b with n turns rotates at an angular velocity
about the diameter of one of the turns in a uniform magnetic field B. The axis of rotation is perpendicular to the magnetic field direction. The resistance and the inductance of the solenoid are equal to R and L, respectively. Find the current in the solenoid as a function of time

Homework Equations



Hint eq: phi = normal vector (dot) Magnetic field (B) s


The Attempt at a Solution



i can't seem to figure out where to start. in order to find the current in the solenoid, do i have to first start with finding the magnetic field (or a specific value of B)? and then plug that into the above eq?
 
Physics news on Phys.org
See the first page of,

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html

There is a small error in the first page of the link above, can you find it?

Once you get the induced sinusoidal voltage you can treat the problem as a series circuit consisting of a sinusoidal voltage a resistance and an inductor?

Found via,

http://www.google.com/webhp?hl=en#h...w.,cf.osb&fp=e47bbecef463087a&biw=721&bih=408

See also,

http://www.google.com/search?hl=en&...&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi
 

Similar threads

Calculating magnetic field outside a solenoid
  • · Replies 15 ·
Replies
15
Views
2K
Current in circular wire surrounding infinite solenoid in a circuit
  • · Replies 7 ·
Replies
7
Views
2K
Understanding self-inductance in a solenoid.
  • · Replies 3 ·
Replies
3
Views
2K
Non-Uniform Magnetic Field Calculations
  • · Replies 9 ·
Replies
9
Views
2K
Direction and magnitude of electric field produced by current change
  • · Replies 8 ·
Replies
8
Views
2K
Magnetic field in a solenoid with rectangular cross-sectional area
  • · Replies 25 ·
Replies
25
Views
3K
Finding current of circular (toroidal) solenoid
  • · Replies 4 ·
Replies
4
Views
1K
{ help } Calculating the B-field at the center of a solenoid
  • · Replies 1 ·
Replies
1
Views
2K
Calculating Magnetic Field Strength and Force of Eddy Currents in a Solenoid
  • · Replies 49 ·
2
Replies
49
Views
6K
Calculating Induced EMF in a Larger Solenoid Slipped Over Another Solenoid
  • · Replies 5 ·
Replies
5
Views
2K