Em Waves Question 88
Which of them is consistent with the magnitudes of the magnetic field?
Options:
A
B
C
D
Show Answer
Answer:
Correct Answer: C
Solution:
$ \oint{\vec{B}\cdot d}\vec{\ell} =\mu _{0}\epsilon _{0}\frac{d\phi }{dt} $ or $ B\times 2\pi r=\mu _{0}\epsilon _{0}A( \frac{dE}{dt} ) $ $ \
Therefore B\propto ( \frac{dE}{dt} ) $