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PS CH 20 S 2 (11 words)
Con il contributo di: Conway
  • 1. a continuous flow of electric charge
A) Electric current
B) Electric field
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) Direct current
B) Alternating current
  • 4. a material through which electric charge can flow easily
A) Electrical conductor
B) Electrical insulator
  • 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) Resistance
B) Prohibition
C) Repelance
  • 7. a material that has almost zero resistance when it is cooled to low temperature
A) Nanoconductor
B) Superconductor
C) Ultraconductor
  • 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) Diode
B) Generator
C) Battery
  • 11. the relationship of voltage, current, and resistance: V = IR
A) Riccardo's law
B) Ohm’s law
C) Conway's law
D) Newton's law
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