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Paper 1
P2
Potential difference, Current, Charge flow
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Cards (5)
Potential difference - the
difference
in
energy
in the
electrical
charge
between
two
points
in a
circuit.
Measured in
Volts
,
V
Current - the
rate
of
flow
of
electrical charge.
Measured in
Amps
,
A
Charge flow - the
amount
of
electrical
charge
that
flows
through
a
conductor
or
circuit
in a
given
time.
Measured in
Coulombs
,
C
V
=
V=
V
=
I
R
IR
I
R
V-
Potential difference (V)
I-
Current (A)
R-
Resistance (♎, ohms)
Q
=
Q=
Q
=
I
t
It
I
t
Q-
Charge flow (C)
I-
Current (A)
t-
time (s)