- #1
Shinwasha
- 22
- 0
Homework Statement
A square conducting loop lies in the xy plane of an xyz coordinate system. The loop is in a uniform magnetic field that points in the positive z direction and is decreasing at a rate of 0.070 T/s. What are (a) the magnitude of the induced EMF in the loop and (b) the direction of the induced current?
Homework Equations
Ɛ = ∆Φ / ∆t
∆Φ = A∆B
The Attempt at a Solution
Area = .04m^2
∆Φ = .04m^2 * 0.070 T/s = .028 T*m^2/s
I'm thinking the ∆t is going to be 1 second since no other time interval was given. Therefore Ɛ = ∆Φ / ∆t = .028/1 = .028 T*m^2
As for (b) since the magnetic force is decreasing the current is going to increase in order to conserve the magnetic field. Therefore the induced magnetic field will be in the positive z direction. Therefore the current turns in CCW