Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/14

Click to flip

14 Cards in this Set

  • Front
  • Back
magnetic field
the region around the magnet where magnetic forces act.
ammeters
measure the elctrical current passing through a circuit in amperes and should be connected in series with circuit.
electromagnetic induction
the process by which moving a wire through a magnetic feild produces a current.
alternating current (AC)
reverses its direction in a regular pattern.
magnetism
a property of matter in which there is a force of attraction or repulsion between unlike or like poles.
magnetic domains
groups of atoms with aligned magnetic poles.
voltmeters
measure the potential difference of a circuit in volts.
generator
produces electric current by rotating a loop of wire in a magnetic field.
transformer
can increase or decrease the coltage of an alternating current.
magnetic poles
the magnetic forces are strongest near these ends.
electromagnet
when an iron core is inserted into such a coil and a current is passed through the coil this is formed.
electric motor
a device that changes electrical energy into mechanical energy.
direct current (DC)
flows only in one direction through a wire.
superconductor
materials that have no electrical resistance.