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Electric Circuits and Currents
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Electric Circuits and Currents
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Electric Circuits and Currents
Electrons release energy in the form of
heat energy
thermal energy
sound energy
light energy
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Electric Circuits and Currents
Most of the electric appliances get energy from
cells
batteries
main supply
dynamos
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Electric Circuits and Currents
The energy which modern gadgets, devices and machines use is
electrical
magnetic
thermal
chemical
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Electric Circuits and Currents
An example of good electrical conductor is
aluminum
sodium
potassium
zinc
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Electric Circuits and Currents
When the current flows one way, the magnet forces push the electromagnet and cone
inwards
forwards
backwards
outwards
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Electric Circuits and Currents
When current is passed through sodium chloride solution, the ionic bonds
split
get strong
join
coagulate
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Electric Circuits and Currents
The energy which is used to push electrons towards the positive terminal is known as
mechanical energy
kinetic energy
electrical energy
potential energy
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Electric Circuits and Currents
Miniature circuit breaker is a small
fuse
magnetic switch
electromagnetic switch
two way switch
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Electric Circuits and Currents
A ‘loudspeaker’ receives
strong waves of sound
strong resistance from source
strong electrical signals
strong voltage
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Electric Circuits and Currents
The more the resistors to a circuit, the
lower the resistance
higher the resistance
same the resistance
resistance may vary
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