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Question 1 In a sinusoidal and plane wave, the directions of the electric field and magnetic field are parallel to each other and perpendicular to the direction of propagation. False. The electric and magnetic field can have any orientation with respect each other. False. The directions of the electric field and magnetic field are perpendicular to each other and to the direction of propagation. True. This is the definition of sinusoidal and plane waves. None of the above. Question 2 An electric field can be represented using electric field lines which must be perpendicular to equipotential surfaces. False. The electric field lines are parallel to equipotential surfaces. True. Electric field lines and equipotential surfaces are mutually perpendicular. False. There is no relationship between the electric field lines and the equipotential surfaces. None of the above.

          Question 1
In a sinusoidal and plane wave, the directions of the electric field and magnetic field are parallel to each other and perpendicular to the direction of propagation.
False. The electric and magnetic field can have any orientation with respect each other.
False. The directions of the electric field and magnetic field are perpendicular to each other and to the direction of propagation.
True. This is the definition of sinusoidal and plane waves.
None of the above.

Question 2
An electric field can be represented using electric field lines which must be perpendicular to equipotential surfaces.
False. The electric field lines are parallel to equipotential surfaces.
True. Electric field lines and equipotential surfaces are mutually perpendicular.
False. There is no relationship between the electric field lines and the equipotential surfaces.
None of the above.

Question 1
In a sinusoidal and plane wave, the directions of the electric field and magnetic field are parallel to each other and perpendicular to the direction of propagation.
False. The electric and magnetic field can have any orientation with respect each other.
False. The directions of the electric field and magnetic field are perpendicular to each other and to the direction of propagation.
True. This is the definition of sinusoidal and plane waves.
None of the above.

Question 2
An electric field can be represented using electric field lines which must be perpendicular to equipotential surfaces.
False. The electric field lines are parallel to equipotential surfaces.
True. Electric field lines and equipotential surfaces are mutually perpendicular.
False. There is no relationship between the electric field lines and the equipotential surfaces.
None of the above.

Added by Montserrat R.

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