PHYSICS FINAL BOSS BRUH Flashcards
combination of electricity and magents
ELECTROMAGNETISM
when a charge moves through a wire, or the current passed through the wire, the wire’s magnetic domain align itself to create a magnetic field
ELECTROMAGNETISM
denotation of magnetic field
B
unit of magnetic field
TESLA
flow of magnetic field to a given area
MAGNETIC FLUX
magnetic flux unit
WEBERS
webers
WB
magnetic flux formula
BACOSTHETA
if perpendicular cos is?
ZERO
if parallel cos is?
90
the turned or coils of the wires,
SOLENOID
more coils/turns?
LARGER MAGNETIC FIELD
positive terminal in electromagnet
NORTH
negative terminal in electromagnet
SOUTH
what will happen to the polarity of the solenoid once the current is reversed?
POLARITY OF SOLENOID IS ALSO REVERSED
when conductor experiences a change in magnetic field caused by magnet, it will cause induced current or induced voltage
FARADAYS LAW
other temr for faradays law
ELECTROMAGNETIC INDUCTION
5 factors affecting induced emf
NUMBER OF COILS
MAGNETIC FLUX
MAGNETIC FIELD
TIME
SURFACE AREA
INDUCED EMF UNIT
V
fardays law formula
N TIMES TRIANGLE MAGNETIC FLUX OVER TRIANGLE TIME
produced by the oscillating electric and magnetic field
ELECTROMAGNETIC WAVES
to form em waves , electric and magnetic filed must be
PERPENDICULAR
can travel in a vacuum or free space without any medium
ELECTROMAGENTIC WAVES
it allows air or other material to store electrical fields
PERMITTIVITY