Module 4 – Electricity
, 03
01 02
Electric current Given by the Current is
is defined as equation: ΔQ = measured in
the rate of flow IΔt Amperes (A)
of charge. and Current is
measured in
Coulombs (C)
Electric Current:
, Electron flow
Conventional current flows from positive to
negative.
This differs from electron flow, which is from
negative to positive.
Electrons take a chaotic path and don’t usually
travel in a straight line.
If no p.d. is applied, then electrons will still
move, but there will be no net movement.
, 03
01 02
Electric current Given by the Current is
is defined as equation: ΔQ = measured in
the rate of flow IΔt Amperes (A)
of charge. and Current is
measured in
Coulombs (C)
Electric Current:
, Electron flow
Conventional current flows from positive to
negative.
This differs from electron flow, which is from
negative to positive.
Electrons take a chaotic path and don’t usually
travel in a straight line.
If no p.d. is applied, then electrons will still
move, but there will be no net movement.
