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Current Electricity
The substances which have a large number of free electrons and offer a low resistance are called
Insulators
Semi-conductors
Conductors
Inductors
Insulators
Semi-conductors
Conductors
Inductors
Answer
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Related Question
Current Electricity
Electric current passing through the circuit produces
Thermal effect
Chemical effect
Luminous effect
Magnetic effect
Thermal effect
Chemical effect
Luminous effect
Magnetic effect
Answer
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Current Electricity
Temperature coefficient of resistance is expressed in terms of
ohms/°C
mhos/°C
ohms/ohm°C
mhos/ohm°C
ohms/°C
mhos/°C
ohms/ohm°C
mhos/ohm°C
Answer
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Current Electricity
The minimum charge on an ion is
None of these
Equal to the charge of the number of electrons in an atom (#) zero
Equal to the atomic number of the atom
Equal to the charge of an electron
None of these
Equal to the charge of the number of electrons in an atom (#) zero
Equal to the atomic number of the atom
Equal to the charge of an electron
Answer
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Current Electricity
One commercial unit of energy equals
One kilowatt-hour
One watt-hour
Ten kilowatt-hour
One watt-hour
One kilowatt-hour
One watt-hour
Ten kilowatt-hour
One watt-hour
Answer
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Current Electricity
Ohm's law is not applicable to
Small resistors
Semi-conductors
Dc circuits
High currents
Small resistors
Semi-conductors
Dc circuits
High currents
Answer
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