Physics – 4.5.1 Electromagnetic induction | e-Consult
4.5.1 Electromagnetic induction (1 questions)
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Explanation of Induced Current:
When a magnet is moved towards a coil of wire, the magnetic flux through the coil changes. This change in magnetic flux induces an electromotive force (EMF) in the coil, according to Faraday's Law of Electromagnetic Induction. This EMF drives a current through the coil. The magnitude of the induced EMF is proportional to the rate of change of magnetic flux and the number of turns in the coil.
Fleming's Left-Hand Rule:
To determine the direction of the induced current:
- Point your thumb in the direction of the induced current.
- Point your index finger in the direction of the motion of the magnet towards the coil.
- Your middle finger will point in the direction of the induced current in the coil.