The figure(Figure 1) shows a vertically polarized radio wave of frequency 6.010

Question

The figure(Figure 1) shows a vertically polarized radio wave of frequency 6.0105Hz traveling into the page. The maximum electric field strength is 1400V/m .

A.   What is the maximum magnetic field strength?

Express your answer to two significant figures and include the appropriate units.

B. What is the magnetic field strength at a point where E?=(700V/m,down) ?

Express your answer to two significant figures and include the appropriate units.

B =

C. The magnetic field direction at a point where E?=(700V/m,down) ?

I HAVE A ANB B BUT IDK C

C??? THE ANSWER IS NOT IN THE -k DIRECTION!

a.EF and mag field are related as E = Bc

so magnetic field B = E/c = 1400/3e8 = 4.667*10^-6 T

b. when E = 700 V/m

B = 700/3e8 = 2.334*10^-6 T

c. since E, B and V are always perpendicular to each other, B will be in -k direction

Explanation / Answer

+ k direction

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