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Current Electricity

Current Electricity
The resistance of a few meters of wire conductor in closed electrical circuit is

Very high
Practically zero
Low
High

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Current Electricity
The maximum current rating for a 10 kΩ, 0.5 W resistor is

28.28 mA
14.14 mA
7.07 mA
0.707 mA

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Current Electricity
The resistance of a conductor varies inversely as

Are of cross-section
Temperature
Resistivity
Length

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Current Electricity
When one lag of parallel circuit is opened out the total current will

None of the listed here
Decreases
Increases
Become zero

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Current Electricity
An electric filament bulb can be worked from

All of the listed here
DC supply only
Battery supply only
AC supply only

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Current Electricity
International ohm is defined in terms of the resistance of

The unit length of wire
A cube of carbon
A column of mercury
A cube of copper

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