1. The document discusses electromagnetic induction and lists Faraday's laws of induction. It notes that electromagnetic induction is the phenomenon where electric current is generated by varying magnetic fields. 2. Faraday's first law states that an EMF is induced in a circuit whenever the magnetic flux through the circuit changes. The second law states that the magnitude of the induced EMF is directly proportional to the rate of change of the magnetic flux through the circuit. 3. Lenz's law explains that an induced current will flow in a direction to create a magnetic field that opposes the original changing magnetic field causing the induction.

2. Group members
Name ID
1. SHANBEL KAFTAMU.......... RU 1234/12-0
2. NEJMIYA MOHAMMED … RU 1203/12-0
3. ABDUREZAK KETEBO.......... Ru 5057/12-0
4. MULUGETA ERESSA............... RU 0007/12-0

3. electromagnetic induction con't
The experiments of Michael Faraday in England and Joseph Henry in
USA, conducted around 1830, demonstrated conclusively that electric
currents were induced in closed coils when subjected to changing
magnetic fields.

4. electromagnetic induction con't
EMI: The phenomenon in which electric current is generated
by varying magnetic fields is appropriately called
electromagnetic induction.

5. electromagnetic induction con't
Faraday’s laws of electromagnetic induction:
First law: Whenever the amount of magnetic flux
linked with a circuit changes, an EMF is induced in
the circuit. The induced EMF lasts so long as the
change in magnetic flux continues.

6. Magnetic flux
Magnetic flux: is a measurement of the total magnetic field which
passes through a given area

7. electromagnetic induction con't
•Second law: The magnitude of emf induced in
a circuit is directly proportional to the rate
of change of magnetic flux linked with a circuit.

8. electromagnetic induction con't
note:-The negative sign means that E opposes its cause.

9. electromagnetic induction con't
Lenz’s law:
•An induced current will be in such a direction as to produce
a magnetic field that will oppose the motion of the magnetic field
that is producing it.Lenz’s law is in accordance with the law of
conservation of energy.