You want to use the idea of electromagnetic induction to make the bulb in your small flashlight
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Question:
You want to use the idea of electromagnetic induction to make the bulb in your small flashlight glow; it glows when the potential difference across it is V You have a small bar magnet and a coil with turns, each with area x times m The magnitude of the B field at the front of the bar magnet's north pole is times T and reaches T when it is about cm away from the pole.
A With what speed should you move the magnet to make the bulb light?
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