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Question-1
The rate of flow of electric charge is called:
(A)
Potential
(B)
Potential difference
(C)
Current
(D)
Resistance
Question-2
When two substance are rubbed together, the substance which receives electrons becomes:
(A)
Negatively charged
(B)
Positively charged
(C)
Neutral
(D)
No change taken place
Question-3
Which unit is used to measure current?
(A)
Ampere
(B)
Volt
(C)
Coulomb
(D)
Watt
Question-4
The materials which do not allow current to flow through them are called:
(A)
Insulator
(B)
Conductor
(C)
Induced charge
(D)
Semiconductor
Question-5
Which of the following is an insulator?
(A)
Wood
(B)
Carbon
(C)
Iron
(D)
Silver
Question-6
Which one is an instrument used to detect the presence of static electric charges?
(A)
Lens
(B)
Microscope
(C)
Electroscope
(D)
Binocular
Question-7
What is the unit of electric charge?
(A)
Ampere
(B)
Coulomb
(C)
Volt
(D)
Watt
Question-8
Good conductor have very low:
(A)
Resistivity
(B)
Conductivity
(C)
Current
(D)
None of these
Question-9
The property of a conductor to exist the flow of charges through it is called:
(A)
Resistance
(B)
Conductivity
(C)
Rheostat
(D)
Commutator
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Std 8
Kerala (English Medium)
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