1.

The magnetic field of a plane electromagnetic wave is given by:\(\vec B = {B_0}\hat i\left[ {{\rm{cos}}\left( {kz - \omega t} \right)} \right] + {B_1}{\rm{\;}}\hat j{\rm{cos}}\left( {kz + \omega t} \right)\) Where B0 = 3 × 10-5 T and B1 = 2 × 10-6 TThe rms value of the force experienced by a stationary charge Q = 10-4 C at z = 0 is closest to:

A. 0.6 N
B. 0.1 N
C. 0.9 N
D. 3 × 10-2 N
Answer» B. 0.1 N


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