Lucy is learning that atoms are made up of several smaller particles. Help her choose words to complete the following statements: A positively charged particle in an atom is a(n)
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, and a particle with no charge is a(n)
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. These two particles form a dense center called the
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. Each particle that moves around this center is called a(n)
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.

The positively charged particles are called " proton " and is denoted by " p " !

the particle with no charge is " neutron" , and is denoted by " n " !

these two particles forms a dense center called " nucleus "

each particle that moves around this centre is called " electron" ! electrons are negatively charged subatomic particles and are denoted like " e^-" !

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current