Determine magnetic field of a bar magnet

[britt]

1. It is desired to determine the magnetic field of a bar magnet. The bar magnet is pushed through a 10.0-cm diameter circular coil in 2.50 × 10-3 s and an emf of 0.750 V is obtained. Find the magnetic field of the bar magnet.


ε = 0.750 V
d=0.10 m
t=2.50x10^-3 s


2. Homework Equations
ε = RI
B=\mu₀I/2r
A= 7.85x10^-3 m²
B= \phi/Acos\theta

 

[berkeman]

1. It is desired to determine the magnetic field of a bar magnet. The bar magnet is pushed through a 10.0-cm diameter circular coil in 2.50 × 10-3 s and an emf of 0.750 V is obtained. Find the magnetic field of the bar magnet.


ε = 0.750 V
d=0.10 m
t=2.50x10^-3 s


2. Homework Equations
ε = RI
B=\mu₀I/2r
A= 7.85x10^-3 m²
B= \phi/Acos\theta

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