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Class 8 Science
Chemical Effects Of Electric Current
Quiz 3
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What do we call the movement of electrons from the positive end to the negative end in an electric circuit?
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Electrons
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Protons
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Conventional current
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Electrolysis
Which of the following is a good conductor of electricity?
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Wood
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Copper
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Rubber
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Wool
Which of the following is an insulator?
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Metals
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Water
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Human body
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Rubber
Why metals are a good conductors of electricity?
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They have free electrons present in their outermost orbits.
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They have unstable nuclei.
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They are lustrous.
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None of these
Match the column
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(a)-> (i), (b) ->(ii), (c) ->(i) , (d) ->(i), e-> (i)
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(a)-> (ii), (b) ->(i), (c) ->(i) , (d) ->(ii), e-> (i)
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(a)-> (i), (b) ->(ii), (c) ->(i) , (d) ->(i), e-> (ii)
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(a)-> (i), (b) ->(i), (c) ->(ii) , (d) ->(ii), e-> (ii)
The electric bulbs glow due to
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Chemical effect of electric current
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Magnetic effect of electric current
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Heating effect of electric current
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None of the above
Which of the following is an insulator
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Paper
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Human Body
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tap water
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Iron
Which device is used to measure electric current?
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Voltmeter
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Odometer
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Ammeter
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Galvanometer
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