Ohm’s Law explains the
relationship between voltage (V
or E), current (I) and resistance
(R)
Used by electricians, automot...
Ohm’s Law

E
I=
R
Where:

I = current (amperes, A)
E = voltage (volts, V)
R = resistance (ohms, Ω)
Ohm’s Law: Resistance and Resistors
In many conductors, the
resistance is independent
of the voltage; this
relationship is...
It is the push or pressure behind
current flow through a circuit,
and is measured in (V) volts. 
Current refers to the
quantity/volume of electrical
flow. Measured in Amps (A)
 Resistance

to the flow of the current.
Measured in Ohms
1.
2.
3.

4.
5.
6.

1.  Assuming the resistance does not
change:
As voltage increases, current increases.
as voltage decre...
V (E) = I x R
I=V
R
R=V
I
Ohms law added by arvi
Ohms law added by arvi
Ohms law added by arvi
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Ohms law added by arvi

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Ohms law added by arvi

  1. 1. Ohm’s Law explains the relationship between voltage (V or E), current (I) and resistance (R) Used by electricians, automotive technicians, stereo installers
  2. 2. Ohm’s Law E I= R Where: I = current (amperes, A) E = voltage (volts, V) R = resistance (ohms, Ω)
  3. 3. Ohm’s Law: Resistance and Resistors In many conductors, the resistance is independent of the voltage; this relationship is called Ohm’s law. Materials that do not follow Ohm’s law are called non-ohmic. Unit of resistance: the ohm, Ω. 1 Ω = 1 V/A.
  4. 4. It is the push or pressure behind current flow through a circuit, and is measured in (V) volts. 
  5. 5. Current refers to the quantity/volume of electrical flow. Measured in Amps (A)
  6. 6.  Resistance to the flow of the current. Measured in Ohms
  7. 7. 1. 2. 3. 4. 5. 6. 1.  Assuming the resistance does not change: As voltage increases, current increases. as voltage decreases, current decreases. 2.  Assuming the voltage does not change: As resistance increases, current decreases. As resistance decreases, current increases.
  8. 8. V (E) = I x R I=V R R=V I

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