Does it consume electricity if we connect the charger, but the device is not connected leaving the switch on?explain!
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yeah energy is waste even when the battery was in use or not as the energy is lost to overcome the resistance of the conductor and the energy convert from electrical to heat according to the law of conservation of energy, Energy is neither created nor destroyed but can be tranform from one form to another.
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A spokesperson for the Energy Saving Trust adds: Any charger that is plugged in at the wall, and not switched off at the socket, will still use some electricity, even if it's not plugged into the device it is meant to charge.
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