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Electric Current Current: a measure of the rate of electron flow past a given point in a circuit

Electric Current Current: a measure of the rate of electron flow past a given point in a circuit -measured in amperes (A) LG: to understand electric current at a basic level. Electric Current Current: a measure of the rate of electron flow past a given point in a circuit

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Electric Current Current: a measure of the rate of electron flow past a given point in a circuit

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  1. Electric Current Current: a measure of the rate of electron flow past a given point in a circuit -measured in amperes (A) LG: to understand electric current at a basic level

  2. Electric Current Current: a measure of the rate of electron flow past a given point in a circuit -measured in amperes (A) Simplest Definition: # of electrons LG: to understand electric current at a basic level

  3. Electric Current Ammeter: device used to measure electric current -has to be connected in series to count all electrons LG: to understand electric current at a basic level

  4. Electric Current Reading Meters: the scale used depends on the connection you attach the wire to. -determine the value of each mark between numbers -estimate the last digit between marks LG: to understand electric current at a basic level

  5. Electric Current LG: to understand electric current at a basic level

  6. Electric Current Amperage = ? LG: to understand electric current at a basic level

  7. Electric Current Amperage = 12.38 A LG: to understand electric current at a basic level

  8. Electric Current Amperage = ? LG: to understand electric current at a basic level

  9. Electric Current Amperage = 21.7 A LG: to understand electric current at a basic level

  10. Electric Current Safety with Electric Currents: large currents can damage electrical devices & cause fires Fuses & Circuit Breakers: open the circuit if current flow is too high -placed in series with everything else on the circuit LG: to understand electric current at a basic level

  11. Electric Current Fuse LG: to understand electric current at a basic level

  12. Electric Current Circuit Breaker LG: to understand electric current at a basic level

  13. Electric Current Electrical Shock: the brain and nervous system send messages using electrical signals -even small amounts of current are dangerous LG: to understand electric current at a basic level

  14. Electric Current Electrical Shock: the brain and nervous system send messages using electrical signals -even small amounts of current are dangerous 0.050 – 0.150 A: muscles contract or convulse out of control -called "let go" threshold because beyond that current a person can no longer let go of the object shocking them LG: to understand electric current at a basic level

  15. Electric Current Electrical Shock: the brain and nervous system send messages using electrical signals -even small amounts of current are dangerous 0.050 – 0.150 A: muscles contract or convulse out of control -called "let go" threshold because beyond that current a person can no longer let go of the object shocking them 1.0 – 4.3 A: will stop the heart 15 A: the amount of current from a wall outlet LG: to understand electric current at a basic level

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