- #1
Jordanosaur
- 10
- 0
Hi guys -
Here's the problem I'm stuck on:
In a physics laboratory experiment, a coil with 160 turns enclosing an area of
13.7 (cm^2) is rotated during the time interval 4.60×10−2(s) from a position in which its plane is perpendicular to Earth's magnetic field to one in which its plane is parallel to the field. The magnitude of Earth's magnetic field at the lab location is 6.50×10−5 (T).
I am not able to figure out how they came up with that figure of induced EMF as
3.10*10^-4
If you use NwBAsin(wt), you come out with 4.86*10^-4 V. Am I missing something in my calculations? Unless I am misunderstanding, this is a rotational motion question requiring the calculation of angular speed for the change in flux.
(PI/2) / (4.60*10^-2) = w (angular velocity)
sin(wt) = 1, therefore change in flux = NwBA
Any help or advice would be much appreciated
Thanks
Jordan
Here's the problem I'm stuck on:
In a physics laboratory experiment, a coil with 160 turns enclosing an area of
13.7 (cm^2) is rotated during the time interval 4.60×10−2(s) from a position in which its plane is perpendicular to Earth's magnetic field to one in which its plane is parallel to the field. The magnitude of Earth's magnetic field at the lab location is 6.50×10−5 (T).
I am not able to figure out how they came up with that figure of induced EMF as
3.10*10^-4
If you use NwBAsin(wt), you come out with 4.86*10^-4 V. Am I missing something in my calculations? Unless I am misunderstanding, this is a rotational motion question requiring the calculation of angular speed for the change in flux.
(PI/2) / (4.60*10^-2) = w (angular velocity)
sin(wt) = 1, therefore change in flux = NwBA
Any help or advice would be much appreciated
Thanks
Jordan