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Transcript of Ohm's Law
R R = V
I Energy required to move a charge from one point to another.
has units of Volts (V) and is measured using voltmeters.
electric potential difference the hindrance to
the flow of charge
measured in ohms the rate at which charge
flows past a point
on a circuit. V = I • R Circuit Connection Series Circuit Parallel Circuit Only one path
for the current
to take is simply a closed
move More then one
path way for
to flow. Relationship on Ohm's Law Current Voltage Resistance Series Circuit Parallel Circuit Itot = I1=
I2=I3.. Itotal = I1
+ I2 + I3 Vbatt= V1 +
V2 + V3 Vbatt=V1
= V2 =V3 = .. Rtot = R1 +
R2 + R3 1/Req = 1/R1 +
1/R2 + 1/R3 Series Circuit Parallel Circuit Comparison Current Resistance More resistor
increases. Increase in resistor
current increases, decreases in resistance The current in a circuit is
directly proportional to the
electric potential difference
and inversely proportional
to the total resistance
offered by the