Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Physics
Physics
Problem
The energy associated with electric field is (
U
E
U_E
U
E
) and with magnetic fields is (
U
B
U_B
U
B
) for an electromagnetic wave in free space. Then : a.
U
E
=
U
B
2
U_E = \frac{U_B}{2}
U
E
=
2
U
B
b.
U
E
>
U
B
U_E > U_B
U
E
>
U
B
c.
U
E
<
U
B
U_E < U_B
U
E
<
U
B
d.
U
E
=
U
B
U_E = U_B
U
E
=
U
B
Browse the problem library