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An electric field and a magnetic field act on a moving electron.
a. True
b. False

User Modan
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Final answer:

An electric field and a magnetic field can both act on a moving electron, exerting forces that can affect its motion.

Step-by-step explanation:

The statement is true. Both an electric field and a magnetic field can act on a moving electron. When an electron moves through a magnetic field, it experiences a force perpendicular to both its velocity and the magnetic field direction. This is known as the magnetic force. Additionally, an electric field can exert a force on a charged particle such as an electron. Thus, both electric and magnetic fields can affect the motion of a moving electron.

User Ameer Moaaviah
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