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9 Cards in this Set
- Front
- Back
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What charges can objects have? |
Positive, negative or neutral |
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What are the names given to positive, negative and neutral charges? |
Positive - proton Negative - electron Neutral - neutron |
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What do two objects with the same charge do? |
They repel each other |
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What do two objects with opposite charges do? |
The attract each other |
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What is an electric current? |
The number of coulombs of charge to pass a point every second |
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What current can electrical devices only be used with? |
d.c. |
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What is an electric field? |
The area around a charge where forces are experienced |
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What is potential difference? |
Potential difference is the amount of energy lost by charge carriers as they pass through a component and the amount of energy gained as they pass through the supply |
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Because of conservation of energy, how do you get the total potential difference in a series circuit? |
You add up all of the voltages in the circuit |
