Electricity
In the war of the currents, which inventor was in favour of using Alternating Current to power our homes?
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In the war of the currents, which inventor was in favour of using Direct Current to power our homes?
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0
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What does Alternating Current mean?
Current that flows in one direction
Current that changes its direction periodically
Current that changes its direction once
What does Direct Current mean?
Current that flows in one direction
Current that changes its direction periodically
Current that changes its direction once
Choose the correct energy conversion for the following appliances
Electrical Energy -> Light + Sound Energy
Electrical Energy -> Heat + Sound Energy
Electrical Energy -> Light + Heat Energy
Electrical Energy -> Heat Energy
Choose the correct energy conversion for the following appliances
Electrical Energy -> Kinetic + Sound Energy
Electrical Energy -> Light + Sound Energy
Electrical Energy -> Kinetic Energy
Electrical Energy -> Heat + Sound Energy
Calculate the power of a bulb if when it is switched on and has 5A of current and 20V passing through.
100W
100J
4W
10W
What is the purpose of a fuse in a socket?
For safety
For decoration
To complete the circuit
To eliminate heat losses
What happens when excess current flows through a fuse?
Nothing
The Earth wire breaks
The Live wire is neutralised
The fuse wire melts and breaks the circuit
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