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Electric Circuit

Paheli connec...

Question

Question 15

Paheli connected two bulbs to a cell as shown in the figure.

She found that filament of the bulb B is broken. Will the bulb A glow in this circuit? Give reason.

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Solution

No, the bulb A will not glow.This is because the electric current will not flow through the bulb A as the circuit becomes incomplete due to the fault in bulb B.

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Q. Question 13
Paheli set up an experiment using liquid A in the beaker as shown in the figure. She observed that the bulb glows. Then she replaced the liquid A by another liquid B. This time the bulb did not glow. Boojho suggested replacing the bulb by an LED. They observed that the LED glows. Explain.

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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

(c) all the bulbs A,B and C will glow at the same time

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

Question 19

Paheli wanted to glow a torch bulb using a cell. She could not get connecting wires, instead, she got two strips of aluminium foil. Will she succeed? Explain, how?

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Electric Circuit

Standard VI Physics

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