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15
×
What is the Ohms law equation?
V = I x R
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15
×
What type of supply does a battery produce, A.C or D.C
D.C
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banana
Go to last place!
Oops!
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fairy
Take points!
5
10
15
20
25
×
shark
Other team loses 5 points!
Okay!
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banana
Go to last place!
Oops!
15
×
What is the term for the "energy transferred per unit charge"?
Voltage (potential difference)
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15
×
Would a plug still work without the earth wire?
Yes, the earth wire is for safety
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15
×
What is the term for the rate of flow of charge around a circuit?
Current
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eraser
Reset score!
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shark
Other team loses 10 points!
Okay!
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shark
Other team loses 15 points!
Okay!
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baam
Lose 10 points!
Oops!
15
×
Why is the voltage stepped up to nearly 400 kV whilst the electricity travels across the cables in the national grid.
To reduce energy lost by heating in the cables.
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15
×
What is the term for the rate of energy transfer?
Power
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15
×
What is the equation to calculate electrical power?
P = V x I
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15
×
What colour is the live wire in a plug?
Brown
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15
×
What is a fuse?
A piece of wire which will melt and break the circuit if too much current is flowing.
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15
×
What is the name of the network of cables and transformers that bring electricity to our homes?
The national grid
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15
×
Will a bird be electrocuted if it sits on a national grid cable?
No, if it is only touching the live wire, it is not completing a circuit so no current flows.
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trap
No points!
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shark
Other team loses 25 points!
Okay!
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shark
Other team loses 20 points!
Okay!
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baam
Lose 25 points!
Oops!
15
×
What is the unit for resistance in a circuit?
The Ohm
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