Which of these will create EM radiation? a. an electron moving at constant velocity b. an electron moving at a constant speed in a circular path c. a motionless proton d. an AC circuit e. a proton moving at a constant speed in a circular path

B) an electron moving at a constant speed in a circular path

D) an AC circuit

E) a proton moving at a constant speed in a circular path

Explanation:

In classical physics, the EM radiation is generated by accelerated charges. Due to that, electrons with constant velocity do not produce EM. However, charges with a circular motion, even with a constant speed, will generate EM because of the centripetal acceleration.

Hence, the following will generate EM

b) an electron moving at a constant speed in a circular path c

d) an AC circuit (because the electrons are accelerated frequently in a sinusoidal signal)

e) a proton moving at a constant speed in a circular path

hope this helps!!

answer: the answer is a

this means that the temperature of both substances will be equal