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A large potential difference is produced between your body and floor when you run on a nylon carpet with shoes on. But on touching a metallic door knob, you only get a mild shock. On the other hand, if one comes in contact of a power line having comparable voltage the person gets a fatal shock. Explain the difference. |
| Answer» Solution :A potential developed in the FIRST case is DUE to accumulation of charges and can be neutralised by transfer of accumulated charges. So, in this case, whenthe charged body touches a conducting object, voltage will be SLOWLY neutralised by the transfer of charge. So, only a little charge is TRANSFERRED for the moment and hence, a mild shock. But in case of a POWER line, the voltage source is fixed and it cannot be neutralised. So, a large current or we can say a large amount of charge will pass through the body in this case. | |