Electricity and Magnetism
Introduction:
Electricity and magnetism are two related phenomena produced by the
electromagnetic force. Together, they form electromagnetism. A moving
electric charge generates a magnetic field. A magnetic field induces electric
charge movement, producing an electric current.
Which of the
following is used as energy for using washing machine?
a) wind
b) electricity
c) fuel
d) light
Lightening of flashes in the sky is due to ……
a) chemical energy
b) electric energy
c) mechanical energy
d) kinetic energy
Electric Current:
An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electric charge through a surface or into a control volume.
Which of the
following energy is associated with charges?
a) chemical energy
b) electric energy
c) mechanical energy
d) kinetic energy
In most cases, electric energy is in the form of motion of charges usually…….
a) protons
b) neutrons
c) electrons
d) ions
