EXPLANATION
Question: Which branch of physics investigates the principles and applications of electricity and magnetism?
- a) Atomic physics
- b) Thermodynamics
- c) Particle physics
- d) Electromagnetism
ANSWER: d) Electromagnetism
EXPLANATION:
The branch of physics that investigates the principles and applications of electricity and magnetism is d) Electromagnetism. Electromagnetism is a branch of physics that studies the relationship between electric and magnetic fields and their interaction with charged particles and currents. It encompasses the laws of electromagnetism, including Maxwell's equations, which describe the behavior of electric and magnetic fields, electromagnetic waves, and electromagnetic force. Electromagnetism plays a crucial role in many areas of physics and has various practical applications, including electrical circuits, electromagnetic devices, communication technologies, and much more. Atomic physics focuses on the study of atoms and their structure, thermodynamics deals with the study of heat and energy transfer, and particle physics explore the fundamental particles and forces in the universe at the subatomic level.
