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What is a short circuit? Why does it happen?

Important Questions on Electric Current and its Effects

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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current
An electric current can produce:
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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current
When electric current is passed through a wire, it gets hot. This is called _____ (melting/heating) effect of the current.
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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current
Nichrome wire is used for making _____.
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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current

Name a device which glows even when a weak electric current passes through it.

(LED/CFL)

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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current
An electric bulb produces light by the;
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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current
Flow of electrons is called _____. (Choose from: Electric current/ Conduction current/ Convection current)
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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current

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Three bulbs A, B and C are connected in a circuit as shown in the figure. When the switch is 'ON' :

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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current
The ‘element’ of an electric iron is made of _____.
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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current
Name the material used in the filament of a bulb.
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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current
Why are LED considered as best and better than ordinary electric bulbs?
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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current
Which of the following compounds is manufactured by using the chemical effect of electric current? 
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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current
The element of an electric iron is made of _______.
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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current
The filament of an electric bulb is made of:
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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current
The device which can be used to detect very small current flowing in an electric circuit is:
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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current

Nichrome wire is used in

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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current
The filament of bulb is made up of which material?
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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current
Electric bulb's filament is made of _____ wire.
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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current

The filament of an electric bulb is made of a thin wire of:

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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current
The filament in a light bulb is made of:
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Science>Physics>Electric Current and its Effects>Heating Effects of Electric Current
What is the reason for expansion of substance/materials when they are heated?