23M.2.HL.TZ1.7

PHYSICS · Subjective · IB Diploma Programme · Physics · Electromagnetic induction · Electromagnetic induction

Problem

23M.2.HL.TZ1.7 (a) Explain, by reference to Faraday's law of electromagnetic induction, why there is an electromotive force (emf) induced in the loop as it leaves the region of magnetic field. [2] (b) Just before the loop is about to completely exit the region of magnetic field, the loop moves with constant terminal speed vv. The following data is available: Mass of loop m=4.0 gm = 4.0\ \text{g} Resistance of loop R=25 mΩR = 25\ \text{m}\Omega Width of loop L=15 cmL = 15\ \text{cm} Magnetic flux density B=0.80 TB = 0.80\ \text{T} Determine, in m s−1\text{m s}^{-1} the terminal speed vv. [4]

Related theory

Browse the problem library