2.6 - Magnetic fields and electromagnetic induction
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8 Terms
Magnetic flux density
force per unit length per unit current on a current-carrying conductor at right-angles to a magnetic field
Fleming’s left hand rule
allows you to determine the direction of motion, field and current in relation to one another
Lenz’s law
the direction of induced current is always such that it is opposed to the change that causes the current
Faraday’s law
the induced emf in a circuit is equal to the rate of change of magnetic flux linkage through the circuit
induced emf
the p.d. induced in a wire due to a moving changing magnetic flux
Cylcotrons
accelerate radioactive particles and control the direction of the particle beams in order to accurately hit the target area on a patient - used in medical machinery to provide radiotherapy treatment
magnetic flux
magnetic field strength through an area
magnetic flux linkage
magnetic field strength through a coil of wire - the flux is multiplied by the number of turns in the coil
Note 
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