Electromagnetism 0.0 / 5 ? ScienceElectromagnetismGCSEAQA Created by: Harvey334Created on: 15-01-18 20:03 From what direction does the magnetic field travel? North to South 1 of 9 What is an induced magnet? An object that becomes a magnet when placed in a magnetic field 2 of 9 what is flux density? How close the field lines are together (strength of the magnetic field) 3 of 9 Describe a solenoid When wire is looped around in a cylindrical coil 4 of 9 Name 3 ways of increasing the magnetic field strength Increase the current | Iron core | Increase the flux density| Coil more wires (if solenoid) 5 of 9 What is the equation that links force, flux density, length and current? F = BIL 6 of 9 What rule can we use to find the direction of a magnetic fields force? Fleming's left hand thumb rule 7 of 9 What rule can we use to find the direction of the magnetic field? Right hand thumb rule 8 of 9 A motor is spinning clockwise, what will happen if you switch the current? Will spin Anti-Clockwise 9 of 9
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