An electric filament bulb can be worked from

DC supply only

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AC supply only

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Battery supply only

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All above

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Solution

The correct option is D All above
An electric filament bulb can be worked from
1. AC Current.
2. DC Current.
3. Battery current.

Option D is correct.

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An electric filament bulb can be worked from

The correct option is D All aboveAn electric filament bulb can be worked from1. AC Current.2. DC Current.3. Battery current.Option D is correct.

The correct option is D All above
An electric filament bulb can be worked from
1. AC Current.
2. DC Current.
3. Battery current.

Option D is correct.