A rectangular coil of a simple A.C. generator | vedclass

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Question

(D) In an $A.C.$ generator, during one complete rotation $(360^{\circ})$ of the coil, the direction of the induced $EMF$ and current changes twice.Aft

Vedclass · Accepted Answer

$1.5$

Vedclass · Answer

(D) In an $A.C.$ generator, during one complete rotation $(360^{\circ})$ of the coil, the direction of the induced $EMF$ and current changes twice.After the first half rotation $(180^{\circ})$, the direction of the current changes for the first time.After one complete rotation $(360^{\circ})$, the direction of the current changes for the second time.After the next half rotation $(180^{\circ})$, i.e., after a total of $1.5$ rotations, the direction of the current changes for the third time.Therefore, the correct answer is $1.5$.

$A$ rectangular coil of a simple $A.C.$ generator rotates about one of its diameters with a constant angular frequency in the presence of a uniform magnetic field. The direction of the induced current reverses for the third time after how many rotations of the coil?

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