The current generation I g , shown in figure, sends a constant current i through the circuit. The wire cd is fixed and ab is made to slide on the smooth, thick rails with a constant velocity v towards right. Each of these wires has resistance r. Find the current through the wire cd.

Question

Philoid · Accepted Answer

Given:

Initial current passing through the circuit = i

Velocity with which the wire ab moves = v

Resistance of each wire = r

Formula used:

Induced emf due to moving of wire ab … (i), where B = magnetic field, l = length of sliding wire, v = velocity

Initial emf in the wire E₀ = ir, where i = current, r = resistance of wire ab.

Hence, net emf … (ii)

Now, net resistance = 2r

Hence, current passing through the wire cd = (Ans)

The current generation Ig, shown in figure, sends a constant current i through the circuit. The wire cd is fixed and ab is made to slide on the smooth, thick rails with a constant velocity v towards right. Each of these wires has resistance r. Find the current through the wire cd.

The current generation I_g, shown in figure, sends a constant current i through the circuit. The wire cd is fixed and ab is made to slide on the smooth, thick rails with a constant velocity v towards right. Each of these wires has resistance r. Find the current through the wire cd.