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electromagnetic waves
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when electrons from a heated filament accelerate through a vacuum toward a positive plate,
a) only an electric field will be produced
b) only a magnetic field will be produced
c) electromagnetic waves will be produced
d) longitudinal waves will be produced
e)neither electric nor magnetic fields will be produced
a) only an electric field will be produced
b) only a magnetic field will be produced
c) electromagnetic waves will be produced
d) longitudinal waves will be produced
e)neither electric nor magnetic fields will be produced
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