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Question
All the bulbs and cells used in the circuits are identical. If the switches are turned ON, in which of the following options will the bulb(s) be the dimmest?
All the bulbs and cells used in the circuits are identical. If the switches are turned ON, in which of the following options will the bulb(s) be the dimmest?
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Solution
The correct option is C
Among the given circuits, the circuit in which a single cell has been connected to two bulbs that are in series, will have the dimmest bulbs.
In a series circuit, the same amount of current flows through all the components placed in it. Therefore the bulb here is getting a power equal to half that of a single cell.
Two bulbs connected in parallel configuration to one cell is as bright as a bulb connected to a single cell.
Two bulbs connected in parallel configuration to two cell in parallel is as bright as a bulb connected to a single cell.
Lastly,
Two bulbs connected in parallel configuration to two cells in series is as bright as a bulb connected to two cells. The bulbs in this circuit are the brightest among all the circuits.
Among the given circuits, the circuit in which a single cell has been connected to two bulbs that are in series, will have the dimmest bulbs.
In a series circuit, the same amount of current flows through all the components placed in it. Therefore the bulb here is getting a power equal to half that of a single cell.
Two bulbs connected in parallel configuration to one cell is as bright as a bulb connected to a single cell.
Two bulbs connected in parallel configuration to two cell in parallel is as bright as a bulb connected to a single cell.
Lastly,
Two bulbs connected in parallel configuration to two cells in series is as bright as a bulb connected to two cells. The bulbs in this circuit are the brightest among all the circuits.
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