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27 Cards in this Set
- Front
- Back
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Electrical charge carriers and electric fields |
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Electricity is the flow of what? |
Electrons around a circuit |
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What does a battery do? |
pushes the electrons around the circuit |
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Like charges will..... |
Oppose |
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Opposite charges will... |
Attract |
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What type of charge does a proton have? |
Positive |
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What type of charge does an electron have? |
Negative |
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What type of charge does a neutron have? |
Neutral |
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Potential Difference |
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What do arrows show in a result of an electric field |
Direction that a positive charge is moving |
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1 joule of energy given to 1 coloumb of charge equals what? |
1 Volt |
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What does DC stand for? |
Direct current |
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What does AC stand for? |
Alternating current |
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What is DC |
Current which flows in 1 direction only |
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What is AC |
Current that changes the direction a certain number of times per second. |
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Practical electrical and electronic circuits |
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In a series circuit, Current is... |
constant everywhere (I1=I2=I3...) |
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In a series circuit, Voltage... |
All adds up to the supply voltage (Vs=V1+V2+V3...) |
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In a parallel circuit, voltage is... |
equal to the supply in each branch (Vs=V1=V2=V3) |
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In a parallel circuit, current... |
adds up to the supply in each branch (Is=I1+I2+I3...) |
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An LED will only light if the arrow points towards the... |
Negative terminal |
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The light dependent resistor will change its resistance in different light levels. If the Light increases what happens to the resistance |
Decreases |
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A thermistor will change its resistance in different temperatures. If the temperature increases what happens to the resistance. |
Decreases |
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What is a transistor? |
Electronic switch |
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When does a MOSFET transistor switch on |
2v |
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Electrical Power |
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Awill do what at high currents |
Melt and break the circuit |
