Register to reply

Calculating the current in a solenoid

by couponcoocoo
Tags: current, solenoid
Share this thread:
Sep28-11, 03:09 PM
P: 1
1. The problem statement, all variables and given/known data

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

2. Relevant equations

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

3. The attempt at a solution

i cant 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?
Phys.Org News Partner Science news on
Experts defend operational earthquake forecasting, counter critiques
EU urged to convert TV frequencies to mobile broadband
Sierra Nevada freshwater runoff could drop 26 percent by 2100
Sep28-11, 08:09 PM
P: 1,368
See the first page of,

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,

See also,

Register to reply

Related Discussions
Finding RMS current in an AC solenoid Introductory Physics Homework 3
EMI - Current in solenoid due to magnet Introductory Physics Homework 1
Induced current due to a Solenoid Introductory Physics Homework 16
Calculating the mass in a solenoid system Introductory Physics Homework 1
Solenoid current profile Electrical Engineering 10