Key Equations
Electromagnetism - OCR A-Level Physics
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$$F = BIL\sin\theta$$
$$F = BQv\sin\theta$$
$$\Phi = BA\cos\theta$$
$$\varepsilon = -\frac{d(N\Phi)}{dt}$$
$$\frac{V_s}{V_p} = \frac{N_s}{N_p}$$
$$r = \frac{mv}{BQ}$$