2024/07/18
The magnitude of the induced emf is directly
proportional to the rate of change of the
magnetic flux linkage.
Michael Faraday
1791 - 1867
1 2
Moving a wire through a magnetic field
induces an electrical current
−𝑁∆ɸ
𝜀=
∆𝑡
3 4
Energy conversion:
Mechanical Energy → Electrical energy
Alternating Current Direct Current
(AC) (DC)
• Induces an alternating • Induces a direct current
current • Contains a split ring
• Contains slip rings commutator
5 6
The magnitude of the induced emf is directly
proportional to the rate of change of the
magnetic flux linkage.
Michael Faraday
1791 - 1867
1 2
Moving a wire through a magnetic field
induces an electrical current
−𝑁∆ɸ
𝜀=
∆𝑡
3 4
Energy conversion:
Mechanical Energy → Electrical energy
Alternating Current Direct Current
(AC) (DC)
• Induces an alternating • Induces a direct current
current • Contains a split ring
• Contains slip rings commutator
5 6
