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PS CH 20 S 2 (11 words)
Contribué par: Conway
  • 1. a continuous flow of electric charge
A) Electric field
B) Electric current
C) Electric energy
  • 2. a flow of electric charge in only one direction
A) Direct current
B) Alternating current
  • 3. a flow of electric charge that regularly reverses its direction
A) Alternating current
B) Direct current
  • 4. a material through which electric charge can flow easily
A) Electrical insulator
B) Electrical conductor
  • 5. a material through which charge cannot flow easily
A) Electrical conductor
B) Electrical insulator
  • 6. the opposition to the flow of electric charges in a material
A) Repelance
B) Resistance
C) Prohibition
  • 7. a material that has almost zero resistance when it is cooled to low temperature
A) Nanoconductor
B) Ultraconductor
C) Superconductor
  • 8. voltage, or the difference in electrical potential energy between two places in an electric field
A) Potential difference
B) pick the other answer
  • 9. potential difference, the difference in electrical potential energy between two places in an electric field
A) pick the other answer
B) Voltage
  • 10. a device that converts chemical energy intro electrical energy
A) Generator
B) Battery
C) Diode
  • 11. the relationship of voltage, current, and resistance: V = IR
A) Ohm’s law
B) Conway's law
C) Riccardo's law
D) Newton's law
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