In mercury arc rectifiers having grid, the arc can be struck between anode and cathode only when the grid attains a certain potential, this potential being known as______________?

Electrical Engineering Mcqs

In mercury arc rectifiers having grid, the arc can be struck between anode and cathode only when the grid attains a certain potential, this potential being known as______________?

(A)  maximum grid voltage

(B)  critical grid voltage

(C)  any of the above

(D)  none of the above

Submitted By :Ali Uppal

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