- #1
Roodles01
- 128
- 0
Homework Statement
I'm asked to start from Faradays Law & Ampere-Maxwell law then derive the equation for the magnetic field, B, in the form;
del2B = 1/c2 * d2B/dt2
Homework Equations
Faraday: curl E = -dB/dt
A.M : curl B = ε0μ0 dE/dt
The Attempt at a Solution
taking curl of both sides of AM
rhs
curl curlB = grad div B - del2B
no monopole says divB = 0
so = - del2B
lhs
curl curl B = ε0μ0 curl dE/dt
rearrange
= ε0μ0 d/dt curl E
Faraday says curl E = -dB/dt
in the next step of working out I don't get why this goes to
-ε0μ0 d2B/dt2
instead of
-ε0μ0 dB/dt
Addled, I must be [Yoda]
Attachments
Last edited: