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**1. A loop of wire is placed between the poles of a magnet. The magnetic field can be assumed uniform between the poles. The formed by the loop within the field of the magnet is 20cm2.**

(i). Determine the magnitude of the flux density required to induce a maximum voltage of 1V when the loop is rotated at 6000rpm

(i). Determine the magnitude of the flux density required to induce a maximum voltage of 1V when the loop is rotated at 6000rpm

**2. E = 2 B l r ω**

**3. E = 2 B l r ω**

We know E= 1v, lr = half A and ω = 6000 x 2Pi / 60

Therefore B = 2 x 0.5 x A x ω / E

So B = 2 x 0.5 x 20 x (6000 x 2Pi/60) / 1 = 12566Wb

Anyone check please, thanks

We know E= 1v, lr = half A and ω = 6000 x 2Pi / 60

Therefore B = 2 x 0.5 x A x ω / E

So B = 2 x 0.5 x 20 x (6000 x 2Pi/60) / 1 = 12566Wb

Anyone check please, thanks