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Current Electricity

Current Electricity
Ohm's law is not applicable to

High currents
Dc circuits
Semi-conductors
Small resistors

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Current Electricity
The minimum charge on an ion is

Equal to the charge of the number of electrons in an atom (#) zero
None of these
Equal to the charge of an electron
Equal to the atomic number of the atom

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Current Electricity
Electric pressure is also called

Voltage
Resistance
Energy
Power

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Current Electricity
A field of force can exist only between

Two ions
Two molecules
Two metal particles
Two atoms

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Current Electricity
Voltage dependent resistors are usually made from

Charcoal
Nichrome
Graphite
Silicon carbide

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Current Electricity
The specific resistance of a metallic conductor ______ with rise in temperature.

Decreases
None of the listed here
Increases
Remains unchanged

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