MEDIUM
7th CBSE
IMPORTANT
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What is the change of electrical energy into heat energy commonly called?

Important Questions on Electric Current and Its Effects

EASY
7th CBSE
IMPORTANT
Name a device based on the magnetic effect of current.
EASY
7th CBSE
IMPORTANT
Of what material is the core of an electromagnet made of?
EASY
7th CBSE
IMPORTANT
What is an open circuit?
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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