A-level Physics · Magnetic fields
Force on a current in a field
Use F = BIL sin θ, with B in mT and L in cm, to find the force, the field or the current.
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Question 1
A straight wire of length 59 cm carries a current of 12.2 A at 50° to a uniform magnetic field of flux density 301 mT. Calculate the force on the wire. Give your answer to 3 significant figures.
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