A metal rod of resistance $$20$$ Ω is fixed along a diameter of a conducting ring of radius $$0.1m$$ and lies on $$x-y$$ plane. There is a magnetic field B→$$=(50T)k^$$ . The ring rotates with an angular velocity w $$=$$ $$20$$ rad $$s-1$$ about its axis. An external resistance of $$10$$ Ω is connected across the center of the ring and rim. The current through external resistance is

Question

A metal rod of resistance $$20$$ Ω is fixed along a diameter of a conducting ring of radius $$0.1m$$ and lies on $$x-y$$ plane. There is a magnetic field B→$$=(50T)k^$$ . The ring rotates with an angular velocity w $$=$$ $$20$$ rad $$s-1$$ about its axis. An external resistance of $$10$$ Ω is connected across the center of the ring and rim. The current through external resistance is

Infinity Learn · Accepted Answer

$$V=B$$ω$$r22=5Volti=VR1+R2=13A$$

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