EASY
7th CBSE
IMPORTANT
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What is an open circuit?

Important Questions on Electric Current and Its Effects

MEDIUM
7th CBSE
IMPORTANT
Why do not tube lights (or fluorescent tubes) generate heat?
EASY
7th CBSE
IMPORTANT
What is an electric fuse? Where it is placed in the circuit?
EASY
7th CBSE
IMPORTANT
On which effect of current, electric bell is based?
MEDIUM
7th CBSE
IMPORTANT
Write one of the main uses of an electromagnet.
MEDIUM
7th CBSE
IMPORTANT

The bulb in the circuit shown alongside does not glow. Where is the fault in the circuit? Correct the fault and redraw the circuit diagram

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EASY
7th CBSE
IMPORTANT
What is meant by the heating effect of current? Name three appliances based on this effect.
MEDIUM
7th CBSE
IMPORTANT
What is the role of fuse in any electrical circuit?
MEDIUM
7th CBSE
IMPORTANT
What is meant by the magnetic effect of current? Name three appliances based on this effect.