Phys 3.3 - Electromagnetic Induction 2.0 / 5 based on 1 rating ? PhysicsForces and MotionGCSEAQA Created by: DanCreated on: 05-05-13 15:10 What is electromagnetic induction? Creating potential difference using a magnetic field 1 of 9 How is potential difference made? You must pass an electrical conductor through through magnetic field lines 2 of 9 Where does this produce potential difference? On the ends of the conductor 3 of 9 What happens if you put a magnet into a coil of wire? A potential difference is induced across the ends of the coil 4 of 9 Why is there no potential difference included when a bar magnet is held stationary inside a coil of wire? The magnet is not cutting through any magnetic field lines 5 of 9 What happens if the wire is part of a complete circuit? a current passes through it 6 of 9 What happens if the direction of movement or coil is reversed? The direction of potential difference is also reversed 7 of 9 What must be occuring for potential difference to be made? Movement 8 of 9 How can we increase the size of the potential difference?(3 ways) Increase the speed of movement, Increase the strength of magnet field, increase the number of turns in the coil 9 of 9
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