Question

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

Answer 1

The answer is a nickel

Step-by-step 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.