Save
Physics paper 2 AQA Triple
Magnestism
Electromagnets
Save
Share
Learn
Content
Leaderboard
Learn
Created by
Ethan
Visit profile
Cards (18)
Middle finger
Represents the
direction
of the
current
Iron
core
Increases
magnetic field strength of electromagnet
Solenoid
Is a Coil of insulated wire
Wire carrying current
Creates a magnetic field
force(N
) =
Magnetic
flux
density(T) x Current x
Length(M
)
Forefinger
Represents the
direction
of the magnetic field
Number of coils
Increases
the
strength
of the
magnetic field
Motor effect
Force
created by the
interaction
between a
wire carrying current
and another
magnetic
field
.
Force
is exerted at
right
angles
Electromagnet
Is a solenoid with an iron core
Fleming's Left Hand Rule
used to find direction of force from Motor effect
Current
flowing in a wire creates a
magnetic field
Magnetic field strength
Greater
closer
to the electromagnet
Shape of wire (
spiral
) creates a strong
magnetic
field
Thumb
Represents the
direction
of the
magnetic
force
Interaction between two magnetic fields
Can
cause
a
force
Increasing the current
Increases
the
strength
of the
magnetic field
Anti-clockwise field means the current is going towards you
Clockwise field
means the current is going away from you