- #71
Entanglement
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- 13
So the emf in the Ariel (Bvql/q) is calculated by the same law of a wire widening and narrowing a loop ( B delta A = Blv ) so that's just a coincidence?Philip Wood said:emf is defined as work done per unit charge on a charge moving round a circuit.
If charge q moves through length L of conductor, work done on it will be force x distance = BqvL
So emf = work done per unit charge = BqvL/q = BLv.
I'm assuming for simplicity that the wire is at right angles to its direction of motion.