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Current Electricity
If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes
0.6 ohm
0.8 ohm
1.0 ohm
0.4 ohm
0.6 ohm
0.8 ohm
1.0 ohm
0.4 ohm
Answer
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Related Question
Current Electricity
The resistance of a few meters of wire conductor in closed electrical circuit is
Very high
Low
Practically zero
High
Very high
Low
Practically zero
High
Answer
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Current Electricity
Resistance of a carbon filament lamp _______ as the applied voltage increases.
None of the listed here
Remains same
Increases
Decreases
None of the listed here
Remains same
Increases
Decreases
Answer
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Current Electricity
Semiconductors have _______temperature co-efficient of resistance.
None of the listed here
Zero
Negative
Positive
None of the listed here
Zero
Negative
Positive
Answer
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Current Electricity
In a series circuit with unequal resistances
The highest resistance has the most of the current through it
The lowest resistance has the highest voltage drop
The highest resistance has the highest voltage drop
The lowest resistance has the highest current
The highest resistance has the most of the current through it
The lowest resistance has the highest voltage drop
The highest resistance has the highest voltage drop
The lowest resistance has the highest current
Answer
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Current Electricity
Ohm's law is not applicable to
High currents
Small resistors
Semi-conductors
Dc circuits
High currents
Small resistors
Semi-conductors
Dc circuits
Answer
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