Answer:
Explanation:
The electric field of a plane standing electromagnetic wave in a vacuum is given by :
We need to find the corresponding expression for the magnetic field. According to equation of Maxwell's :
![\bigtriangledown \times E=k[E_ok\ cos(kx)cos(\omega t)]=-\dfrac{\partial B}{\partial t}](https://tex.z-dn.net/?f=%5Cbigtriangledown%20%5Ctimes%20E%3Dk%5BE_ok%5C%20cos%28kx%29cos%28%5Comega%20t%29%5D%3D-%5Cdfrac%7B%5Cpartial%20B%7D%7B%5Cpartial%20t%7D)
Since, 
So, the corresponding expression for the magnetic field is 
. Hence, this is the required solution.
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Answer:
e = 30 V
Explanation:
given,
N = 30 turns
Area = 0.25 m²
angular speed = ω = 100 rad/s
Magnetic field = 0.04 T
maximum induced emf in the loop = ?
e = N B A ω
e = 30 x 0.04 x 0.25 x 100
e = 30 V
hence, the maximum emf induced in the loop is equal to e = 30 V
Answer:
456
Explanation:
impulse = Force x (time of contact)
this isn't really much information but hope this helps !: )
