contestada

If there is an open circuit which of the following could be used to complete the
circuit?
a nickel
a paper cup
a piece of paper. a piece of yarn

Respuesta :

Answer:

The answer is a nickel

Explanation:

Why? Because nickel is a type of iron and electrons are made up of electricity. Iron attracts electricity, while a paper cup, a piece of paper, and a piece of yarn don't.  

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