Question

Please solve this question with showing the intermediate process.

Thank you.

2) 18 p Thick copper wire Conducting connections between rails A current I, = 10 kA is flowing through a thick copper wire. Parallel to the wire, a conducting bar of width w = 10 cm is moving with speed v = 10 m/s, dragged by an external force guided by conducting rails with the same distance as the width of the bar. The rail closer to the copper wire is at a distance d = 3 cm from its center. The contact between rails and bar is conducting, and the two rails are connected through conducting wires at regular intervals, with all elements having negligible resistance. The copper wire and rails can be assumed to have infinite length. A light-bulb with resistance R = 0.52 is inserted in the moving bar d W 12 Calculate the power radiated by the light bulb. rails find power radiated by this light-bulb

Answer 1

2) Courtant in the long wire is 10 T. Amp. o.10 W= 10 cm 0.03 d = 3 cm is bulb resistance of the R = 0.5 2 cut am w firstly elemental strip of width da wire. from the long at distance 9 I, IN = lo mle da emf in the wood is due to motional emf induced de VB da

from Biot savant law, magnetic field at location of de is Mo I B = 25 a 80 de Mo I, da 2TM de Mo IV dal 2 TT mow total induced emf is dtw Mo IV E = du 2 TT 으 Mo IV E = (long down 2T Чо 2T 2X20-7 Mo IV E = In ldt d 2 TT E = 0.03 +0.10 **10*10 x16 In 1 *. 0.03 -5 2.93 X 10 volt

mow power dissipated by the light bulb is (7-931-5) 2. E P = R 0.5 watt. P 17.169 x 10-10