Gaurav made a circuit as shown in figure below, in which he arranged three identical bulbs in series. He wants to find out which bulb will glow first when the switch is moved to 'ON' position. Can you tell?

bulb A will glow fast

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bulb B will glow fast

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bulb C will glow fast

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all bulbs will glow together

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Solution

The correct option is D
all bulbs will glow together

All the bulbs will glow only when there is a current in the wire and that is only possible when the circuit is complete. Hence, all three bulbs will glow simultaneously because the speed of current is very high in conductors.

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Similar questions

Question 5

In the circuit shown below, when the switch is moved to ‘ON’ position,

(a) the bulb A will glow first.

(b) the bulb B will glow first.

(d) all bulbs will glow together.

Question 3

Three bulbs A, B, C are connected in a circuit as shown in Figure. When the switch is ‘ON’

(a) bulb C will glow first

(b) bulb B and C will glow simultaneously and bulb A will glow after some time

(d) the bulbs will glow in the order A, B and C

In the circuit shown in figure

(i) Would any of the bulbs glow when the switch is in the ‘OFF’ position?

(ii) What will be the order in which the bulbs A, B and C will glow when the switch is moved to the ‘ON’ position?

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