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North pole on left. South pole on right. (Polarity according to whether or not it's flipped).

Field Lines (h3) (if enabled)

One
Coil
coilTwo
Coils
coils different field strengthsTwo coils same field strengthsField strength values
The magnet field strength is
(field strength) magnetic field at the 4 loop coil.
The magnet
(field strength
is:
) magnetic field at the 2 loop coil, (field strength) magnetic field at the 4 loop coil.(field strength) magnetic field at
the
both 2 loop and 4 loop coil.

Very strong

Strong

Moderate

Weak

Controls Area (h2)

  • Button
    • Label: "Grab magnet"
    • Aria description: "Select this to move the magnet."
  • Checkbox
    • Label: "Voltmeter"
    • Aria description: "Play with or without voltmeter connected to light bulb circuit"
  • Checkbox
    • Label: "Field Lines"
    • Aria description: "Hide or show magnetic field lines."
  • Circuit mode
    • Aria description: "Experiment with one or two coils."
    • Radio button group
      • (Radio) 1 coil
      • (Radio) 2 coils
  • Button
    • Label: "Flip magnet"
    • Aria description: "Flip North and South Poles"
  • Button
    • Label: "Reset All"

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