A student made circuit with by using an electric cell , a switch(key) a torch bulb and copper connecting wires .When he 'turned on' the switch , the torch bulb did not glow at all. The student checked the circuit and found that all the wire connections are right .What could be the possible reason for the torch bulb not glowing ? What could have caused the above condition?

Dear Student,

Please find below the solution to the asked query:

If bulb is not glowing at all then most probably the filament of the bulb is not connected properly. There may be problem with bulb.
The other possibility is battery is completely discharged. 

Hope this information will clear your doubts about this topic.

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