Good day to you, Scientists!
Today, I shall discuss the
electrical current, of which I founded!
An electrical current is
the rate of charge flow at a given point. What this basically means is: how
fast the electrons go at a point. It is measured in Amperes, named after me,
André Ampere, but can also be measured in Coulombs per second.
One easy way to remember
this is:
1 Ampere=1 C/s=6.24x10^18 electrons per second
1 Ampere=1 C/s=6.24x10^18 electrons per second
Now, when it
is used in equations such as Ohm’s Law, current is labeled as “I”. Equations
such as P=IV (Power=Current times Voltage), V=IR (Voltage=Current times
Resistance) and I=Q/T (Current is equal to Charge divided by Time) use current
constantly. Current is a rate quantity, much like velocity is. Though in a
circuit, electrons move from negative to positive, current goes from positive
to negative.
Current flows through
conductors pretty easily; this is because the conductors actually help along
the electrons that are flowing. Conductivity is based on an objects resistance
(or lack thereof) to the movement of electrons. Without electrical charge,
there would be no electric current, so count yourself lucky that we discovered
these.
Imagine
a motorcycle gang speeding down an empty highway: each person could equal tens
of thousands of electrons, and there still would be more electrons left to
move!
One
strange thing about current is that it is scalar and not a vector even though
it is said that it has a magnitude and a direction! Think about that while you
have free time.
I am such a genius!
~Andre Ampere (and the Scientists)
~Andre Ampere (and the Scientists)
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