This document discusses electromagnetism and its applications. It explains that a moving electric charge creates magnetic fields and changing magnetic fields create electric charges. It describes how coils of wire and electric currents are used to create electromagnets. It also discusses how changing magnetic fields produce electric fields and vice versa. Finally, it provides some examples of applications of electromagnetism like electric motors, dumping cars, loudspeakers, MRI, communication systems, radar, and medical imaging.

1. Ramsha javed
BSES-II
2493

2.  Introduction
 Magnetic fields from electricity
 Electromagnets
 Induced Current
 The Electromagnetic Connection
 Applications of Electromagnetism
 Electromagnetic radiations
 Effects
 control
 conclusion

3. Introduction
◦ a moving electric charge produces
magnetic fields
◦ changing magnetic fields move
electric charges
 Faraday, Maxwell
 Einstein

4.  Magnetic fields from
electricity:
 Charges in motion (an electrical current) produce a
magnetic field

5.  Arranging wire in a coil and running a
current produces a magnetic field
that looks like a bar magnet called an
electromagnet.

7. A changing magnetic field produces an
electric field, and vice versa.
 Both electric and magnetic fields can
transport energy
◦ Electric field energy used in electrical
circuits, e.g., released in lightning
◦ Magnetic field carries energy through
transformer.

10.  PRO meter
 ELF meter
 Gigahertz ME3030b
meter.

11. Electric motors:

12. Dumping cars:

13. Loudspeaker:

14. Magnetic Resonance
Imaging (MRI)

15. Interrelated electric and
magnetic fields traveling
through space

16.  Communication systems
 Radar
 Medical Imaging (X rays)
 Astronomy (radio, wave, IR, visible,
UV, gamma)

19. 