Consider the situation shown in the figure. T | vedclass

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(B) The induced electromotive force $(EMF)$ in a moving conductor is given by $\varepsilon = B \cdot l_{eff} \cdot V$,where $l_{eff}$ is the effective

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Remain the same

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(B) The induced electromotive force $(EMF)$ in a moving conductor is given by $\varepsilon = B \cdot l_{eff} \cdot V$,where $l_{eff}$ is the effective length of the conductor perpendicular to the velocity vector and the magnetic field.For a wire moving in a uniform magnetic field,the effective length is the straight-line distance between the two points of contact on the rails.Even if the wire $AB$ is replaced by a semicircular wire,the distance between the points of contact on the rails remains the same as the original straight wire $AB$.Since the velocity $V$,the magnetic field $B$,and the effective length $l_{eff}$ remain unchanged,the induced $EMF$ $\varepsilon$ remains the same.Consequently,the magnitude of the induced current $I = \varepsilon / R$ also remains the same.

Consider the situation shown in the figure. The wire $AB$ is sliding on the fixed rails with a constant velocity $V$. If the wire $AB$ is replaced by a semicircular wire of the same chord length,the magnitude of the induced current will

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