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Electric Circuit

The electric ...

Question

The electric bulb will glow only when the circuit containing it ______.

A

is complete

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B

is incomplete

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C

contains switch

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D

contains fuse

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Solution

The correct option is A
is complete

The bulb in a circuit glows only when the circuit is complete and the current is flowing.

A switch is used to control the bulb, while a fuse is used to protect the bulb from fusing due to excess current. A bulb can glow even if a switch or fuse is not present in the circuit.

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Similar questions

Q. Three different electrolytic cells A, B, and C are connected in separate circuits. Electrolytic cell A contains sodium chloride solution. When the circuit is completed a bulb in the circuit glows brightly. Electrolytic cell B contains acetic acid solution and in this case the bulb in the circuit glows dimly. The electrolytic cell C contains sugar solution and the bulb does not glow. Give a reason for each of these observations.

Q. When a circuit containing a bulb and a battery connected by wires is broken, the bulb stops glowing.

Q. Assertion :A, B & C are three electrolytic cells, connected in different circuits. Cell 'A' contains

N a C l

solution, and the bulb in the circuit glows brightly when the circuit is completed. Cell 'B' contains acetic acid and the bulb glows dimly. Cell 'C' contains sugar solution, & the bulb does not glow. Reason:

N a C l

is strong electrolyte so it dissociates completely into ions. Acetic acid is weak electrolyte so it dissociates very less. Sugar is non-electrolyte so it doesn't dissociates into ions.

Q. Choose the correct statement for a bulb connecting in an electrical circuit.
Statement (i) : The bulb glows only when the switch is in ON condition.
Statement (ii) : The bulb does not glow when the switch is in OFF condition.

When a circuit containing a bulb and a battery connected by wires is broken, by cutting one wire, the bulb stops glowing.

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