Electricity🔸 Flashcards

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1
Q

Battery

A

Chemical reaction releases charged particles.converts chemical potential energy into electrical energy

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2
Q

Electric current

A

Flow of charge

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3
Q

Solids

A

Electrons Kerrie the charge they are free to move

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4
Q

Fluids (car battery)

A

Positive and negative ions as well as electrons may flow

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5
Q

Flow of charge

A

Charge close to the potential difference (voltage)/will continue until both ends reach the same potential

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6
Q

Voltage

A

Attentional different/provides the electric pressure to move charge between the terminals in a circuit

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7
Q

Water flows

A

From high to low pressure

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8
Q

How does a potentiometer work?

A

Is a variable resistor that changes resistance by changing like the flyer

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9
Q

Parallel circuit

A
  1. more resistance lowers total resistance
  2. voltage drop across parallel resistance is the same
  3. current in parallel resistance sums to total correct
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10
Q

Series circuit

A
  1. more resistance increases total resistance
  2. total voltage drop must sum to original voltage
  3. current through all resistors is the same
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11
Q

Factor -resistance changes

A

Length-^length^ resistance
Temperature-^t^r
Cross sections -lower cs ^r
Material -resistance varies with material used

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