Figure shows an isosceles triangle wire frame with apex angle equal toπ$$/2$$.The frame starts entering into the region of uniform magnetic field B with constant velocity v at t $$=$$ $$0$$. The longest side of the frame is perpendicular to the direction of velocity. If i is the instantaneous current through the frame then choose the alternative showing the correct variation of i with time.

Question

Infinity Learn · Accepted Answer

ϕ$$=BA=B122xx$$ϕ$$=Bx2$$ε$$=d$$ϕ$$dt=2Bx$$.$$vI=$$ε$$R=2BvRx$$

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