A microwave oven operates at 2.4 GHz with an intensity inside the oven of 2700 W / m 2 .What is the amplitude of the oscillating electric field?What is the amplitude of the oscillating magnetic field?

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A microwave oven operates at 2.4 GHz with an intensity inside the oven of   2700     W      /        m    2    .What is the amplitude of the oscillating electric field?What is the amplitude of the oscillating magnetic field?

Finnegan Zimmerman · Accepted Answer

The expression for the amplitude of the oscillating magnetic field is,Here, I is the intensity, mu_0, is the permeability of free space and c is speed of lightSubstitute   4  π  ×      10          −      7        T  ⋅  m      /    A     f  o  r         μ    0    ,  2700     W      /        m    2    f  o  r     I  ,     a  n  d     3  ×      10    8    m      /    s  f  o  r     c      B    0    =                    2        (        4        π        ×                  10                      −            7                          T        ⋅        m                  /                A        )        (        2700                 W                  /                          m          2                )                    3        ×                  10          8                         m                  /                s                =  4.75  ×      10          −      6           TThen, the amplitude of the oscillating electric field is,      E    0    =  c      B    0    =  (  3  ×      10    8       m      /        s    2    )  (  4.75  ×      10          −      6        T  )    =  1.42  ×      10    3       V      /    mTherefore, the amplitude of the oscillating electric field and magnetic field are       E    0    =  1.42  ×      10    3       V      /    m   and       B    0    =  4.75  ×      10          −      6        T

A microwave oven operates at 2.4 GHz with an intensity inside the oven of 2700 <mtext> </m

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