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Paper 1
P2
Series & Parallel circuits
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Created by
Joanna S
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Cards (6)
Series circuit:
closed circuit
current only follows a
single path
current is the
same everywhere
total resistance is the
sum
of the
resistance
of each
component
(R total= 𝑅1 + 𝑅2 + ⋯)
potential difference is
shared
across
each
component
if one thing breaks the circuit will
no
longer
work
Parallel circuit:
branched
circuit
current
splits
into
multiple
paths
(I total = I1 +I2)
potential difference is the
same
on
each
branch
(V total = V1 =V2)
if one thing breaks the circuit will
still
work
Adding resistor in series or parallel circuit:
Adding a resistor in a series circuit
increases
the total resistance
Adding a resistor in a parallel circuit
decreases
the total resistance
In a parallel circuit the total resistance is
smaller
than the resistance of the
smallest
resistor
How should an ammeter be connect in a circuit?
Ammeter should be connected in
series
with the component that is being measured for current running through it
How should a voltmeter be connected in a circuit?
Voltmeters should be connected in
parallel
to the component that the potential difference is being measured of