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Standard X

Physics

Faraday's Experiment

The current g...

Question

The current generator 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.

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Solution

Current passing through the circuit initially = i
Initial emf = ir
Emf induced due to motion of ab, e = Blv
Net emf, e_net= ir − Blv
Net resistance = 2r
Thus, the current passing through the circuit is $\frac{i r - B l v}{2 r}$ .

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The current generator 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.

Current passing through the circuit initially = i Initial emf = ir Emf induced due to motion of ab, e = Blv Net emf, enet= ir − Blv Net resistance = 2r Thus, the current passing through the circuit is ir-Blv2r.

The current generator 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.

Current passing through the circuit initially = i
Initial emf = ir
Emf induced due to motion of ab, e = Blv
Net emf, e_net= ir − Blv
Net resistance = 2r
Thus, the current passing through the circuit is $\frac{i r - B l v}{2 r}$ .