ELECTRIC CIRCUITS
@STUDYNOTESBYM
, E. ELECTRIC CIRCUITS
1. OHM’S LAW
POTENTIAL DIFFERENCE
The work done per unit positive charge
𝑾
𝑽=
𝑸
V: potential difference (V)
W: work done/ change in energy (J)
Q: charge (C)
0
CURRENT
The rate of flow of charge
𝒒
𝑰=
0𝒕
I: current (A)
q: charge (Q)
t: time (s)
0
OHM’S LAW
Ohm’s Law: current through a conductor is directly proportional to the potential
difference across the conductor at constant temperature
𝑉 = 𝐼𝑅
0
• Ohm’s law explains the relationship between current and potential difference:
current and potential difference are directly proportional at a constant temperature
@STUDYNOTESBYM
, E. ELECTRIC CIRCUITS
1. OHM’S LAW
POTENTIAL DIFFERENCE
The work done per unit positive charge
𝑾
𝑽=
𝑸
V: potential difference (V)
W: work done/ change in energy (J)
Q: charge (C)
0
CURRENT
The rate of flow of charge
𝒒
𝑰=
0𝒕
I: current (A)
q: charge (Q)
t: time (s)
0
OHM’S LAW
Ohm’s Law: current through a conductor is directly proportional to the potential
difference across the conductor at constant temperature
𝑉 = 𝐼𝑅
0
• Ohm’s law explains the relationship between current and potential difference:
current and potential difference are directly proportional at a constant temperature
