electric currents

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Last updated 1:37 PM on 6/5/26
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17 Terms

1
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Wire

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Cell

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Ammeter

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Switch

5
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What are the two types of electrostatic charge?

positive and negative

6
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What is a series circuit?

everything is connected in one loop

7
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How is current measured in a circuit?

using an ammeter placed in series

8
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What is resistance measured in?

ohms

9
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How can you increase the strength of an electromagnet?

  1. increase the current through the wire

  2. increase the number of coils around the wire

  3. use an iron core

10
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What is current measured in?

amps (A)

11
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What does a voltmeter measure?

the voltage supplied by a cell or battery

12
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What is voltage a measure of?

the energy supplied to move charge around

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What happens to the current in a series circuit?

the current is the same throughout the circuit

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How do electrons move in a circuit?

they drift from negative to positive terminal

15
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What can cause static charge?

friction between insulators

16
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What is another term for potential difference?

voltage

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What device measures current in a wire?

an ammeter