Question

An infinitely long wire has a current i, as shown, where io is a known constant. Above the wire, a rod of mass m and resistance R slides without friction on resistance-free rails, which are in turn connected to a capacitor of capacitance C. At t = 0, the rod is a distance of L from the capacitor. Batman pushes on the rod to ensure that it moves at a constant velocity V. Ignore the self-inductance of the circuit. L νο C w a у lo z Out of Page Find the direction of the current in the circuit.

Answer 1

Solni - The concept behind question is lenz law if the magnetic flux is increasing they will oppose that increment magnet flux is increasing EX)- N so it oppose by clockwise Current direction of induced content. Now in this problem let's finding flyx bassing through circuit Lor loop). Assim 4 Stoibe ob width dy' and flux passing through stop B t do BA Ty Holo [dy.x] 3TT (9+y) y=W do s Hodox Holod 217 dy aty y=0 Z х Holod W Lín (a + b)). B= Holo 211044) 2 TT Holo) 2 TT In (at)

Since flux Modo o [ pa ITT In (2+4) J x Since it is clear that the wire rod is moving right means x increasing means the 'outward flux" outward flux' through circuit is increasing that mems he will oppose its that's when the current in circuit will be clock wise drection" Ang 61 E-induced Emp do dit d= induced current 1)