Physics Electricity

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  • Created by: Val_paola
  • Created on: 21-11-17 18:58
What is current?
The flow of electricity around a circuit
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What is Potential Difference?
The driving force that pushes the current around the circuit
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What is resistance?
A componant that slows down the current
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What is the correct equation for working out charge?
Charge = Current x Time
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What is the equation for Potential Difference?
Pd = Current x Resistance
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What is a series circuit?
All componants connected in one line
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What is a parallel circuit?
Each componant is connected seperately
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Current is ----- between the branches in a parallel circuit
Shared
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What is the same across all componants in a parallel circuit?
Potential difference
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What does increasing the resistance also increase?
Temperature and current
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Battreries produce what kind of current?
Direct
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Mains produce what kind of current?
Alternating
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What colour is the earth wire?
Brown
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What is the live wire for?
Provides potential difference from mains
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What is the equation for energy transferred?
Energy Transferred = Power x Time
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What is the equation for power?
Power = Pd x Current
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What is the national grid?
A system of cables and transformers
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Other cards in this set

Card 2

Front

What is Potential Difference?

Back

The driving force that pushes the current around the circuit

Card 3

Front

What is resistance?

Back

Preview of the front of card 3

Card 4

Front

What is the correct equation for working out charge?

Back

Preview of the front of card 4

Card 5

Front

What is the equation for Potential Difference?

Back

Preview of the front of card 5
View more cards

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