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26 Nov 2019
A 1.50-m-long bar is pulled to the right at asteady 5.0 m/sperpendicular to a uniform 0.75 T magnetic field.The bar rides onparallel metal rails connected through a 25Ωresistor R, sothe apparatus makes a complete circuit. The resistance ofthe barand rails is negligibly small.
(a) Determine the emf induced in thecircuit. (Ans: -5.6V)(b) Determine the magnitude and direction ofthe current in thecircuit (Ans: 0.23A) (c)Determine the magnitude of the forcerequired to move the bar.(Ans: 0.25N)
A 1.50-m-long bar is pulled to the right at asteady 5.0 m/sperpendicular to a uniform 0.75 T magnetic field.The bar rides onparallel metal rails connected through a 25Ωresistor R, sothe apparatus makes a complete circuit. The resistance ofthe barand rails is negligibly small.
(a) Determine the emf induced in thecircuit. (Ans: -5.6V)
(a) Determine the emf induced in thecircuit. (Ans: -5.6V)
(b) Determine the magnitude and direction ofthe current in thecircuit (Ans: 0.23A) (c)Determine the magnitude of the forcerequired to move the bar.(Ans: 0.25N)
Bunny GreenfelderLv2
26 Jan 2019
