EASY
7th CBSE
IMPORTANT
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Write the full form of MCB.
Important Questions on Electric Current and Its Effects
EASY
7th CBSE
IMPORTANT
The conducting path through the bulb, wires, switch and battery is called an electric _____.
EASY
7th CBSE
IMPORTANT
Longer line in the symbol for a cell represents its _____ (negative/positive) terminal.
EASY
7th CBSE
IMPORTANT
The short and thick line in the symbol of a cell represents its _____ (positive/negative) terminal.
EASY
7th CBSE
IMPORTANT
The combination of two or more cells is called a _____. (battery/switch)
EASY
7th CBSE
IMPORTANT
When current is switched ‘on’ in a room heater, its element becomes _____.
EASY
7th CBSE
IMPORTANT
The safety device based on the heating effect of electric current is called _____ (fuse/switch).
EASY
7th CBSE
IMPORTANT
The magnet made by using electric current is called an _____.
EASY
7th CBSE
IMPORTANT
An electric current flowing through a wire produces _____ (heating/cooling) effect.
