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Doesn't Faraday's law of induction say the same thing? that emf is related to the rate change of magnetic flux? and magnetic flux = BA cos thetaTSny said:
I'm not sure what you mean by the "same thing" here.mingee kim said:
Yes, good.
Would it be more appropriate to say that emf is related to the rate of change of B?
mingee kim said:
Ahh, it makes sense now. Thank you!TSny said:
An electromotive force (emf) is a measure of the electrical energy produced by a source, such as a battery or generator, and is typically measured in volts (V).
Emf and magnetic field strength are related through Faraday's law of induction, which states that a changing magnetic field can induce an emf in a conductor. The magnitude of the induced emf is directly proportional to the rate of change of the magnetic field.
No, emf can only be induced by a changing magnetic field. A constant magnetic field will not induce an emf in a conductor.
The direction of the magnetic field affects the direction of the induced emf according to Lenz's law, which states that the induced emf will always oppose the change in magnetic flux that caused it. This means that the direction of the induced emf will be opposite to the direction of the change in the magnetic field.
The unit of measurement for magnetic field strength is tesla (T), named after inventor and scientist Nikola Tesla. Another commonly used unit is gauss (G), with 1 T = 10,000 G.
