the figure shows a 23cm -long metal rod pulled along two frictionless, conductin
ID: 1288734 • Letter: T
Question
the figure shows a 23cm -long metal rod pulled along two frictionless, conducting rails at a constant speed of 4.0m/s . The rails have negligible resistance, but the rod has a resistance of 0.65ohm
a)What is the current induced in the rod?
b)What is the magnitude of the force is required to keep the rod moving at a constant speed?
the figure shows a 23cm -long metal rod pulled along two frictionless, conducting rails at a constant speed of 4.0m/s . The rails have negligible resistance, but the rod has a resistance of 0.65ohm a)What is the current induced in the rod? b)What is the magnitude of the force is required to keep the rod moving at a constant speed?Explanation / Answer
induced emf e = lvB
emf e = 0.23*4 * 1.4
emf e = 1.288 Volts
induced curent i = emf/R
i = 1.288/0.65
i = 1.981 Amps
-------------------------
apply F = iLB
F = 1.981* 0.23* 1.4
F = 0.638 N
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.