State Faraday's Law of electromagnetic induction, both qualitatively and quantitatively. How is Lenz's Law included in this? (4 marks)
emf= (-) d(magnetic-flux)/dt (1 mark) Faradays law of induction states that the electromotive force induced in any closed circuit is equal to the negative rate of change of magnetic flux enclosed in the circuit. (1 mark) Lenz's Law gives us the direction of the induced emf. It is included in the 'minus' sign which tells us that the direction of the induced emf produces a current whose magentic field opposses the change which produced it. (2 marks)
MH
Related Physics A Level answers
All answers ▸How does an object in circular motion experience acceleration when it is going at a constant speed?
How would we calculate the distance covered by a train that starts at rest, then accelerates to 5km/hr in 30 mins then stays at this constant speed for 12 minutes?
How did rutherford's gold leaf experiment prove the existence of the nucleus?
When a particle travels in a circle of radius r, at constant speed v, what is its acceleration