What is emf?
when are we exposed to emf?
does emf increase or decrease with distance?
what are the primary differences in direct current and alternating current?
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Ответ:
Electricity is the voltage produced by any electrical energy source such as battery or dynamo. EMF increase with distance.
The direct current is fixed but the alternating current is constantly changing
Ответ:
the law of energy states it can be neither broken or created