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Radiation for life
What is the current flowing through the 12? resistor?
If the resistance in the circuit is halved the new current that flows is:
What is the resistance of a kettle element if 8A flows through it when the mains voltage is 240V?
A hair drier is said to be double insulated because:
It has two earth wires
It has a plastic outer case
It has two fuses
Which wire is connected to the fuse?