IEM Reviewer 1 - Lecture 3-5

electricity and magnetism is two of its aspect, which tackles the study of charges and its forces and fields

• Concept of electromagnetism
• Pre-1900s
• Luigi Galuani (1700s)
• Alessandro Volta

People believed that electricity and magnetism are seperate effects

• Pre-1900s
• Luigi Galuani (1700s)
• Alessandro Volta
• Voltaic Pile

Observed his dissected frog’s leg twitches when it touched two different metals

• Luigi Galuani (1700s)
• Alessandro Volta
• Voltaic Pile
• Electric Potential

investigated if two different metals produce electric current when its brought to contact;

• Alessandro Volta
• Voltaic Pile
• Electric Potential
• Hans Oersted

Stacked up ZiCu plates; precursor for battery

• Voltaic Pile
• Electric Potential
• Hans Oersted
• Electromagnetism

measured in Volt (V) or Joules per Coulomb (J/C)

• Electric Potential
• Hans Oersted
• Electromagnetism
• Concept of electromagnetism

produced the evidence of direct link between electricity and magnetic phenomena

• Hans Oersted
• Electromagnetism
• Concept of electromagnetism
• Pre-1900s

Any charge in motion induces magnetic field

• Electromagnetism
• Concept of electromagnetism
• Pre-1900s
• Luigi Galuani (1700s)

thumb points the direction of electric current, while the rest of the fingers points the magnetic field

• Right Hand Rule
• The Electromagnet
• Solenoid
• Iron Core

Coil of wire wrapped around an iron core that induce magnetic field only when there is current flowing in the coil

• The Electromagnet
• Solenoid
• Iron Core
• Michael Faraday