Physics Vocabulary Crossword

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Across
  1. 3. Electromotive Force (EMF): The potential difference across a wire that results from the production of an electric field.
  2. 5. Current: The amount of direct current that dissipates as much energy in a resistor as an instantaneous alternating current does during a complete cycle.
  3. 7. EMF: The EMF induced in a motors coil that tends to reduce the current powering the motor.
  4. 9. Generator: A device that converts mechanical energy to electrical energy.
  5. 11. Current Generator: Creates charges that only move in a single direction.
  6. 12. Law: The induced electromotive force is always in such a direction as to oppose the change that caused it.
  7. 13. Currents: A current generated in a piece of metal that is moving through a changing magnetic field, producing a magnetic field that opposes the motion that caused the current.
Down
  1. 1. A long, helically wound coil of insulated wire.
  2. 2. Induction: Inducing voltage by changing the magnetic field around a conductor.
  3. 4. Current Generator: Creates charges that move in multiple directions.
  4. 6. The property of a wire, either straight or in a coil, to create an induced EMF that opposes the change in the potential difference across the wire.
  5. 8. Law: The induced voltage in a coil is proportional to the product of the number of loops, the cross-sectional area of each loop, and the rate at which the magnetic field changes within those loops.
  6. 10. inductance: A measure of the ability of one circuit carrying a changing current to induce an EMF in a nearby circuit.
  7. 11. A microscopic magnetic region composed of a group of atoms whose magnetic fields are aligned in a common direction.