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Electric Circuits and Currents
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Electric Circuits and Currents
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Electric Circuits and Currents
Another example of a good electric conductor is
gold
copper
steel
plastic
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Electric Circuits and Currents
An instrument that gives an accurate measurement of the electric current flowing in a circuit is known as
voltmeter
galvanometer
barometer
ammeter
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Electric Circuits and Currents
The weakest link in a circuit is formed by a
fuse
resistor
thermistor
transistor
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Electric Circuits and Currents
Water is a poor electrolyte, so an acid is added to increase its conductivity. The acid is
hydrochloric acid
sulphuric acid
nitric acid
carbonic acid
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Electric Circuits and Currents
The materials that allow the electrons to flow through them is known as
insulators
conductors
electrolytes
bases
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Electric Circuits and Currents
For safety, appliances should be equipped with
magnets
resistors
live wire
earth wire
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Electric Circuits and Currents
A component which is used to close or break a circuit, is
bulb
switch
wire
electric cell
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Electric Circuits and Currents
Small ‘amperes’ are measured by
giga amperes
mega amperes
mill amperes
kilo amperes
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Electric Circuits and Currents
Poor conductor of electricity is
silver
aluminum
water
copper
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Electric Circuits and Currents
Short circuit occurs when the current takes up
more voltage
less voltage
short path
long path
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