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Standard VII
Physics
Dry Cell
Identify the ...
Question
Identify the devices which will only function when they are switched “ON”.
A
Torch
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B
Radio
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C
Television
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D
Computer
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E
Cars
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F
Shoes
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G
Coffee mug
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H
Eraser
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I
Pencil
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Solution
The correct option is
E
Cars
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Similar questions
Q.
Which statement about electromagnets is incorrect?
(a) They have a core of steel.
(b) They remain magnets when electricity is switched off.
(c) They can function only when electricity is switched on.
(d) They can be used to lift heavy iron loads.
Q.
The secondary storage devices can only store data but they cannot perform ____________.
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Study the circuit diagram.
How many bulbs will light up when switches
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Name the device used to make a circuit function, only when needed?
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Three bulbs, each with a resistance of 180 Ω, are connected in parallel to an ideal battery of emf 60 V.
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