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Physics- electrostatics and electric circuits R50,00   Add to cart
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Physics- electrostatics and electric circuits

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The document includes electric circuits and electrostatics. It goes into detail as it mentions Coulomb’s law and all the calculations surrounding these topics.

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  • August 9, 2021
  • 3
  • 2021/2022
  • Interview
  • Unknown
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Micaeladacosta

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PHYSICS
(Electric circuits and Electrostatics)
Electric circuits


Potential difference (V) ~ Work done per unit charge
V= Work ÷ Charge unit=Volts


Current (I)~ rate of flow of charge
I=Charge ÷ Time unit=Amps


Resistance (R)~ materials opposition to flow of electric current
Unit=Ohms
Ohms law
Current flowing through a conductor is directly proportional to the voltage across the
conductor if temperature is constant
V=IR
Ohmic conductor
 Obey ohms law
 Voltage is directly proportional to Current if temperature is constant
 Voltage ÷ Current=Resistance remains constant


V




I
Non ohmic conductor
 Does not obey ohms law
 Resistant is not constant since resistance is directly proportional to
temperature
 Voltage ÷ Current = Resistance does not remain constant

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