Bulbs [devices] for AC are designed to operate such that it offers high impedance to AC supply. Normally they have low resistance. When DC supply is applied, due to low resistance, the current through lamp would be so high that it may damage the bulb element.
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Transmission substation transmission substation connects two or more transmission lines Distribution substation distributi... -
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Series motor cannot be started without load because of high starting torque. Series motor is used in Trains, Crane, etc.
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synchronous machines have the capability to work on different power factor (or say different imaginary POW varying the field emf. Hence sy...
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