PDF chapter test TRY NOW

1. Fill in the blanks:
 Many devices connected to a single socket, will leads to an.
  
2. Arrange the steps to explain electromagnetism.
 
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Answer variants:
When the current is switched on, the pins clung to the tip of the nail
Wound the wire tightly around the iron nail like a coil
But when the current is turned off, the pins does not stick to the tip of the nail
When the current flows through the circuit, the coil behaves like a magnet
Connect the ends of the wire to the cell through a switch
Take an iron nail of \(6\)\(–\)\(10\) \(cm\) long and a flexible plastic wire (or any insulated wire) of length \(75\ cm\) long
Place the pins near the end of the nail
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