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Physics
M4
C3
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Created by
Harry Skinner
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Cards (6)
What is Kirchhoff’s first law?
the sum of
currents
entering
a
junction
is equal to the sum of
currents
leaving
a
junction
What is Kirchhoff’s second law
In any
closed loop,
the
sum
of the
e.m.f
is
equal
to the
sum
of the
P.Ds dissipated
around the circuit (
loop)
K1 and K2 are conservations of what?
K1:
charge
K2:
energy
Define internal resistance
The
resistance
of the
materials
within the
battery
What is the equation for potential dividers
v-out
=
v-in
x
R1
/(
R1
+
R2
)
What is Electro Motive Force (e.m.f)?
The energy gained per unit charge when passing through a supply (cell)